1 /* 2 * Testsuite for eBPF verifier 3 * 4 * Copyright (c) 2014 PLUMgrid, http://plumgrid.com 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of version 2 of the GNU General Public 8 * License as published by the Free Software Foundation. 9 */ 10 11 #include <asm/types.h> 12 #include <linux/types.h> 13 #include <stdint.h> 14 #include <stdio.h> 15 #include <stdlib.h> 16 #include <unistd.h> 17 #include <errno.h> 18 #include <string.h> 19 #include <stddef.h> 20 #include <stdbool.h> 21 #include <sched.h> 22 23 #include <sys/capability.h> 24 #include <sys/resource.h> 25 26 #include <linux/unistd.h> 27 #include <linux/filter.h> 28 #include <linux/bpf_perf_event.h> 29 #include <linux/bpf.h> 30 31 #include <bpf/bpf.h> 32 33 #ifdef HAVE_GENHDR 34 # include "autoconf.h" 35 #else 36 # if defined(__i386) || defined(__x86_64) || defined(__s390x__) || defined(__aarch64__) 37 # define CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS 1 38 # endif 39 #endif 40 41 #include "../../../include/linux/filter.h" 42 43 #ifndef ARRAY_SIZE 44 # define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) 45 #endif 46 47 #define MAX_INSNS 512 48 #define MAX_FIXUPS 8 49 50 #define F_NEEDS_EFFICIENT_UNALIGNED_ACCESS (1 << 0) 51 52 struct bpf_test { 53 const char *descr; 54 struct bpf_insn insns[MAX_INSNS]; 55 int fixup_map1[MAX_FIXUPS]; 56 int fixup_map2[MAX_FIXUPS]; 57 int fixup_prog[MAX_FIXUPS]; 58 const char *errstr; 59 const char *errstr_unpriv; 60 enum { 61 UNDEF, 62 ACCEPT, 63 REJECT 64 } result, result_unpriv; 65 enum bpf_prog_type prog_type; 66 uint8_t flags; 67 }; 68 69 /* Note we want this to be 64 bit aligned so that the end of our array is 70 * actually the end of the structure. 71 */ 72 #define MAX_ENTRIES 11 73 74 struct test_val { 75 unsigned int index; 76 int foo[MAX_ENTRIES]; 77 }; 78 79 static struct bpf_test tests[] = { 80 { 81 "add+sub+mul", 82 .insns = { 83 BPF_MOV64_IMM(BPF_REG_1, 1), 84 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 2), 85 BPF_MOV64_IMM(BPF_REG_2, 3), 86 BPF_ALU64_REG(BPF_SUB, BPF_REG_1, BPF_REG_2), 87 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -1), 88 BPF_ALU64_IMM(BPF_MUL, BPF_REG_1, 3), 89 BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), 90 BPF_EXIT_INSN(), 91 }, 92 .result = ACCEPT, 93 }, 94 { 95 "unreachable", 96 .insns = { 97 BPF_EXIT_INSN(), 98 BPF_EXIT_INSN(), 99 }, 100 .errstr = "unreachable", 101 .result = REJECT, 102 }, 103 { 104 "unreachable2", 105 .insns = { 106 BPF_JMP_IMM(BPF_JA, 0, 0, 1), 107 BPF_JMP_IMM(BPF_JA, 0, 0, 0), 108 BPF_EXIT_INSN(), 109 }, 110 .errstr = "unreachable", 111 .result = REJECT, 112 }, 113 { 114 "out of range jump", 115 .insns = { 116 BPF_JMP_IMM(BPF_JA, 0, 0, 1), 117 BPF_EXIT_INSN(), 118 }, 119 .errstr = "jump out of range", 120 .result = REJECT, 121 }, 122 { 123 "out of range jump2", 124 .insns = { 125 BPF_JMP_IMM(BPF_JA, 0, 0, -2), 126 BPF_EXIT_INSN(), 127 }, 128 .errstr = "jump out of range", 129 .result = REJECT, 130 }, 131 { 132 "test1 ld_imm64", 133 .insns = { 134 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1), 135 BPF_LD_IMM64(BPF_REG_0, 0), 136 BPF_LD_IMM64(BPF_REG_0, 0), 137 BPF_LD_IMM64(BPF_REG_0, 1), 138 BPF_LD_IMM64(BPF_REG_0, 1), 139 BPF_MOV64_IMM(BPF_REG_0, 2), 140 BPF_EXIT_INSN(), 141 }, 142 .errstr = "invalid BPF_LD_IMM insn", 143 .errstr_unpriv = "R1 pointer comparison", 144 .result = REJECT, 145 }, 146 { 147 "test2 ld_imm64", 148 .insns = { 149 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1), 150 BPF_LD_IMM64(BPF_REG_0, 0), 151 BPF_LD_IMM64(BPF_REG_0, 0), 152 BPF_LD_IMM64(BPF_REG_0, 1), 153 BPF_LD_IMM64(BPF_REG_0, 1), 154 BPF_EXIT_INSN(), 155 }, 156 .errstr = "invalid BPF_LD_IMM insn", 157 .errstr_unpriv = "R1 pointer comparison", 158 .result = REJECT, 159 }, 160 { 161 "test3 ld_imm64", 162 .insns = { 163 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1), 164 BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0), 165 BPF_LD_IMM64(BPF_REG_0, 0), 166 BPF_LD_IMM64(BPF_REG_0, 0), 167 BPF_LD_IMM64(BPF_REG_0, 1), 168 BPF_LD_IMM64(BPF_REG_0, 1), 169 BPF_EXIT_INSN(), 170 }, 171 .errstr = "invalid bpf_ld_imm64 insn", 172 .result = REJECT, 173 }, 174 { 175 "test4 ld_imm64", 176 .insns = { 177 BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0), 178 BPF_EXIT_INSN(), 179 }, 180 .errstr = "invalid bpf_ld_imm64 insn", 181 .result = REJECT, 182 }, 183 { 184 "test5 ld_imm64", 185 .insns = { 186 BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0), 187 }, 188 .errstr = "invalid bpf_ld_imm64 insn", 189 .result = REJECT, 190 }, 191 { 192 "no bpf_exit", 193 .insns = { 194 BPF_ALU64_REG(BPF_MOV, BPF_REG_0, BPF_REG_2), 195 }, 196 .errstr = "jump out of range", 197 .result = REJECT, 198 }, 199 { 200 "loop (back-edge)", 201 .insns = { 202 BPF_JMP_IMM(BPF_JA, 0, 0, -1), 203 BPF_EXIT_INSN(), 204 }, 205 .errstr = "back-edge", 206 .result = REJECT, 207 }, 208 { 209 "loop2 (back-edge)", 210 .insns = { 211 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), 212 BPF_MOV64_REG(BPF_REG_2, BPF_REG_0), 213 BPF_MOV64_REG(BPF_REG_3, BPF_REG_0), 214 BPF_JMP_IMM(BPF_JA, 0, 0, -4), 215 BPF_EXIT_INSN(), 216 }, 217 .errstr = "back-edge", 218 .result = REJECT, 219 }, 220 { 221 "conditional loop", 222 .insns = { 223 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), 224 BPF_MOV64_REG(BPF_REG_2, BPF_REG_0), 225 BPF_MOV64_REG(BPF_REG_3, BPF_REG_0), 226 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, -3), 227 BPF_EXIT_INSN(), 228 }, 229 .errstr = "back-edge", 230 .result = REJECT, 231 }, 232 { 233 "read uninitialized register", 234 .insns = { 235 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), 236 BPF_EXIT_INSN(), 237 }, 238 .errstr = "R2 !read_ok", 239 .result = REJECT, 240 }, 241 { 242 "read invalid register", 243 .insns = { 244 BPF_MOV64_REG(BPF_REG_0, -1), 245 BPF_EXIT_INSN(), 246 }, 247 .errstr = "R15 is invalid", 248 .result = REJECT, 249 }, 250 { 251 "program doesn't init R0 before exit", 252 .insns = { 253 BPF_ALU64_REG(BPF_MOV, BPF_REG_2, BPF_REG_1), 254 BPF_EXIT_INSN(), 255 }, 256 .errstr = "R0 !read_ok", 257 .result = REJECT, 258 }, 259 { 260 "program doesn't init R0 before exit in all branches", 261 .insns = { 262 BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), 263 BPF_MOV64_IMM(BPF_REG_0, 1), 264 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 2), 265 BPF_EXIT_INSN(), 266 }, 267 .errstr = "R0 !read_ok", 268 .errstr_unpriv = "R1 pointer comparison", 269 .result = REJECT, 270 }, 271 { 272 "stack out of bounds", 273 .insns = { 274 BPF_ST_MEM(BPF_DW, BPF_REG_10, 8, 0), 275 BPF_EXIT_INSN(), 276 }, 277 .errstr = "invalid stack", 278 .result = REJECT, 279 }, 280 { 281 "invalid call insn1", 282 .insns = { 283 BPF_RAW_INSN(BPF_JMP | BPF_CALL | BPF_X, 0, 0, 0, 0), 284 BPF_EXIT_INSN(), 285 }, 286 .errstr = "BPF_CALL uses reserved", 287 .result = REJECT, 288 }, 289 { 290 "invalid call insn2", 291 .insns = { 292 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 1, 0), 293 BPF_EXIT_INSN(), 294 }, 295 .errstr = "BPF_CALL uses reserved", 296 .result = REJECT, 297 }, 298 { 299 "invalid function call", 300 .insns = { 301 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 1234567), 302 BPF_EXIT_INSN(), 303 }, 304 .errstr = "invalid func unknown#1234567", 305 .result = REJECT, 306 }, 307 { 308 "uninitialized stack1", 309 .insns = { 310 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 311 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 312 BPF_LD_MAP_FD(BPF_REG_1, 0), 313 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 314 BPF_FUNC_map_lookup_elem), 315 BPF_EXIT_INSN(), 316 }, 317 .fixup_map1 = { 2 }, 318 .errstr = "invalid indirect read from stack", 319 .result = REJECT, 320 }, 321 { 322 "uninitialized stack2", 323 .insns = { 324 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 325 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, -8), 326 BPF_EXIT_INSN(), 327 }, 328 .errstr = "invalid read from stack", 329 .result = REJECT, 330 }, 331 { 332 "invalid argument register", 333 .insns = { 334 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 335 BPF_FUNC_get_cgroup_classid), 336 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 337 BPF_FUNC_get_cgroup_classid), 338 BPF_EXIT_INSN(), 339 }, 340 .errstr = "R1 !read_ok", 341 .result = REJECT, 342 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 343 }, 344 { 345 "non-invalid argument register", 346 .insns = { 347 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_1), 348 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 349 BPF_FUNC_get_cgroup_classid), 350 BPF_ALU64_REG(BPF_MOV, BPF_REG_1, BPF_REG_6), 351 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 352 BPF_FUNC_get_cgroup_classid), 353 BPF_EXIT_INSN(), 354 }, 355 .result = ACCEPT, 356 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 357 }, 358 { 359 "check valid spill/fill", 360 .insns = { 361 /* spill R1(ctx) into stack */ 362 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), 363 /* fill it back into R2 */ 364 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -8), 365 /* should be able to access R0 = *(R2 + 8) */ 366 /* BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, 8), */ 367 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), 368 BPF_EXIT_INSN(), 369 }, 370 .errstr_unpriv = "R0 leaks addr", 371 .result = ACCEPT, 372 .result_unpriv = REJECT, 373 }, 374 { 375 "check valid spill/fill, skb mark", 376 .insns = { 377 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_1), 378 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_6, -8), 379 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8), 380 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, 381 offsetof(struct __sk_buff, mark)), 382 BPF_EXIT_INSN(), 383 }, 384 .result = ACCEPT, 385 .result_unpriv = ACCEPT, 386 }, 387 { 388 "check corrupted spill/fill", 389 .insns = { 390 /* spill R1(ctx) into stack */ 391 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), 392 /* mess up with R1 pointer on stack */ 393 BPF_ST_MEM(BPF_B, BPF_REG_10, -7, 0x23), 394 /* fill back into R0 should fail */ 395 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8), 396 BPF_EXIT_INSN(), 397 }, 398 .errstr_unpriv = "attempt to corrupt spilled", 399 .errstr = "corrupted spill", 400 .result = REJECT, 401 }, 402 { 403 "invalid src register in STX", 404 .insns = { 405 BPF_STX_MEM(BPF_B, BPF_REG_10, -1, -1), 406 BPF_EXIT_INSN(), 407 }, 408 .errstr = "R15 is invalid", 409 .result = REJECT, 410 }, 411 { 412 "invalid dst register in STX", 413 .insns = { 414 BPF_STX_MEM(BPF_B, 14, BPF_REG_10, -1), 415 BPF_EXIT_INSN(), 416 }, 417 .errstr = "R14 is invalid", 418 .result = REJECT, 419 }, 420 { 421 "invalid dst register in ST", 422 .insns = { 423 BPF_ST_MEM(BPF_B, 14, -1, -1), 424 BPF_EXIT_INSN(), 425 }, 426 .errstr = "R14 is invalid", 427 .result = REJECT, 428 }, 429 { 430 "invalid src register in LDX", 431 .insns = { 432 BPF_LDX_MEM(BPF_B, BPF_REG_0, 12, 0), 433 BPF_EXIT_INSN(), 434 }, 435 .errstr = "R12 is invalid", 436 .result = REJECT, 437 }, 438 { 439 "invalid dst register in LDX", 440 .insns = { 441 BPF_LDX_MEM(BPF_B, 11, BPF_REG_1, 0), 442 BPF_EXIT_INSN(), 443 }, 444 .errstr = "R11 is invalid", 445 .result = REJECT, 446 }, 447 { 448 "junk insn", 449 .insns = { 450 BPF_RAW_INSN(0, 0, 0, 0, 0), 451 BPF_EXIT_INSN(), 452 }, 453 .errstr = "invalid BPF_LD_IMM", 454 .result = REJECT, 455 }, 456 { 457 "junk insn2", 458 .insns = { 459 BPF_RAW_INSN(1, 0, 0, 0, 0), 460 BPF_EXIT_INSN(), 461 }, 462 .errstr = "BPF_LDX uses reserved fields", 463 .result = REJECT, 464 }, 465 { 466 "junk insn3", 467 .insns = { 468 BPF_RAW_INSN(-1, 0, 0, 0, 0), 469 BPF_EXIT_INSN(), 470 }, 471 .errstr = "invalid BPF_ALU opcode f0", 472 .result = REJECT, 473 }, 474 { 475 "junk insn4", 476 .insns = { 477 BPF_RAW_INSN(-1, -1, -1, -1, -1), 478 BPF_EXIT_INSN(), 479 }, 480 .errstr = "invalid BPF_ALU opcode f0", 481 .result = REJECT, 482 }, 483 { 484 "junk insn5", 485 .insns = { 486 BPF_RAW_INSN(0x7f, -1, -1, -1, -1), 487 BPF_EXIT_INSN(), 488 }, 489 .errstr = "BPF_ALU uses reserved fields", 490 .result = REJECT, 491 }, 492 { 493 "misaligned read from stack", 494 .insns = { 495 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 496 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, -4), 497 BPF_EXIT_INSN(), 498 }, 499 .errstr = "misaligned access", 500 .result = REJECT, 501 }, 502 { 503 "invalid map_fd for function call", 504 .insns = { 505 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), 506 BPF_ALU64_REG(BPF_MOV, BPF_REG_2, BPF_REG_10), 507 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 508 BPF_LD_MAP_FD(BPF_REG_1, 0), 509 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 510 BPF_FUNC_map_delete_elem), 511 BPF_EXIT_INSN(), 512 }, 513 .errstr = "fd 0 is not pointing to valid bpf_map", 514 .result = REJECT, 515 }, 516 { 517 "don't check return value before access", 518 .insns = { 519 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), 520 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 521 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 522 BPF_LD_MAP_FD(BPF_REG_1, 0), 523 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 524 BPF_FUNC_map_lookup_elem), 525 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0), 526 BPF_EXIT_INSN(), 527 }, 528 .fixup_map1 = { 3 }, 529 .errstr = "R0 invalid mem access 'map_value_or_null'", 530 .result = REJECT, 531 }, 532 { 533 "access memory with incorrect alignment", 534 .insns = { 535 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), 536 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 537 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 538 BPF_LD_MAP_FD(BPF_REG_1, 0), 539 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 540 BPF_FUNC_map_lookup_elem), 541 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), 542 BPF_ST_MEM(BPF_DW, BPF_REG_0, 4, 0), 543 BPF_EXIT_INSN(), 544 }, 545 .fixup_map1 = { 3 }, 546 .errstr = "misaligned access", 547 .result = REJECT, 548 }, 549 { 550 "sometimes access memory with incorrect alignment", 551 .insns = { 552 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), 553 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 554 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 555 BPF_LD_MAP_FD(BPF_REG_1, 0), 556 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 557 BPF_FUNC_map_lookup_elem), 558 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), 559 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0), 560 BPF_EXIT_INSN(), 561 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 1), 562 BPF_EXIT_INSN(), 563 }, 564 .fixup_map1 = { 3 }, 565 .errstr = "R0 invalid mem access", 566 .errstr_unpriv = "R0 leaks addr", 567 .result = REJECT, 568 }, 569 { 570 "jump test 1", 571 .insns = { 572 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 573 BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -8), 574 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1), 575 BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0), 576 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 1), 577 BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 1), 578 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 1), 579 BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 2), 580 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 1), 581 BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 3), 582 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 1), 583 BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 4), 584 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 1), 585 BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 5), 586 BPF_MOV64_IMM(BPF_REG_0, 0), 587 BPF_EXIT_INSN(), 588 }, 589 .errstr_unpriv = "R1 pointer comparison", 590 .result_unpriv = REJECT, 591 .result = ACCEPT, 592 }, 593 { 594 "jump test 2", 595 .insns = { 596 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 597 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 2), 598 BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0), 599 BPF_JMP_IMM(BPF_JA, 0, 0, 14), 600 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 2), 601 BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 0), 602 BPF_JMP_IMM(BPF_JA, 0, 0, 11), 603 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 2), 604 BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 0), 605 BPF_JMP_IMM(BPF_JA, 0, 0, 8), 606 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 2), 607 BPF_ST_MEM(BPF_DW, BPF_REG_2, -40, 0), 608 BPF_JMP_IMM(BPF_JA, 0, 0, 5), 609 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 2), 610 BPF_ST_MEM(BPF_DW, BPF_REG_2, -48, 0), 611 BPF_JMP_IMM(BPF_JA, 0, 0, 2), 612 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 1), 613 BPF_ST_MEM(BPF_DW, BPF_REG_2, -56, 0), 614 BPF_MOV64_IMM(BPF_REG_0, 0), 615 BPF_EXIT_INSN(), 616 }, 617 .errstr_unpriv = "R1 pointer comparison", 618 .result_unpriv = REJECT, 619 .result = ACCEPT, 620 }, 621 { 622 "jump test 3", 623 .insns = { 624 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 625 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3), 626 BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0), 627 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 628 BPF_JMP_IMM(BPF_JA, 0, 0, 19), 629 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 3), 630 BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 0), 631 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16), 632 BPF_JMP_IMM(BPF_JA, 0, 0, 15), 633 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 3), 634 BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 0), 635 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -32), 636 BPF_JMP_IMM(BPF_JA, 0, 0, 11), 637 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 3), 638 BPF_ST_MEM(BPF_DW, BPF_REG_2, -40, 0), 639 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -40), 640 BPF_JMP_IMM(BPF_JA, 0, 0, 7), 641 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 3), 642 BPF_ST_MEM(BPF_DW, BPF_REG_2, -48, 0), 643 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -48), 644 BPF_JMP_IMM(BPF_JA, 0, 0, 3), 645 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 0), 646 BPF_ST_MEM(BPF_DW, BPF_REG_2, -56, 0), 647 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -56), 648 BPF_LD_MAP_FD(BPF_REG_1, 0), 649 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 650 BPF_FUNC_map_delete_elem), 651 BPF_EXIT_INSN(), 652 }, 653 .fixup_map1 = { 24 }, 654 .errstr_unpriv = "R1 pointer comparison", 655 .result_unpriv = REJECT, 656 .result = ACCEPT, 657 }, 658 { 659 "jump test 4", 660 .insns = { 661 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), 662 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), 663 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), 664 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), 665 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), 666 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), 667 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), 668 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), 669 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), 670 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), 671 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), 672 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), 673 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), 674 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), 675 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), 676 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), 677 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), 678 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), 679 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), 680 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), 681 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), 682 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), 683 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), 684 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), 685 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), 686 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), 687 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), 688 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), 689 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), 690 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), 691 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), 692 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), 693 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), 694 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), 695 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), 696 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), 697 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), 698 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), 699 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), 700 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), 701 BPF_MOV64_IMM(BPF_REG_0, 0), 702 BPF_EXIT_INSN(), 703 }, 704 .errstr_unpriv = "R1 pointer comparison", 705 .result_unpriv = REJECT, 706 .result = ACCEPT, 707 }, 708 { 709 "jump test 5", 710 .insns = { 711 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 712 BPF_MOV64_REG(BPF_REG_3, BPF_REG_2), 713 BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), 714 BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8), 715 BPF_JMP_IMM(BPF_JA, 0, 0, 2), 716 BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8), 717 BPF_JMP_IMM(BPF_JA, 0, 0, 0), 718 BPF_MOV64_IMM(BPF_REG_0, 0), 719 BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), 720 BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8), 721 BPF_JMP_IMM(BPF_JA, 0, 0, 2), 722 BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8), 723 BPF_JMP_IMM(BPF_JA, 0, 0, 0), 724 BPF_MOV64_IMM(BPF_REG_0, 0), 725 BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), 726 BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8), 727 BPF_JMP_IMM(BPF_JA, 0, 0, 2), 728 BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8), 729 BPF_JMP_IMM(BPF_JA, 0, 0, 0), 730 BPF_MOV64_IMM(BPF_REG_0, 0), 731 BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), 732 BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8), 733 BPF_JMP_IMM(BPF_JA, 0, 0, 2), 734 BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8), 735 BPF_JMP_IMM(BPF_JA, 0, 0, 0), 736 BPF_MOV64_IMM(BPF_REG_0, 0), 737 BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), 738 BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8), 739 BPF_JMP_IMM(BPF_JA, 0, 0, 2), 740 BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8), 741 BPF_JMP_IMM(BPF_JA, 0, 0, 0), 742 BPF_MOV64_IMM(BPF_REG_0, 0), 743 BPF_EXIT_INSN(), 744 }, 745 .errstr_unpriv = "R1 pointer comparison", 746 .result_unpriv = REJECT, 747 .result = ACCEPT, 748 }, 749 { 750 "access skb fields ok", 751 .insns = { 752 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 753 offsetof(struct __sk_buff, len)), 754 BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), 755 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 756 offsetof(struct __sk_buff, mark)), 757 BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), 758 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 759 offsetof(struct __sk_buff, pkt_type)), 760 BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), 761 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 762 offsetof(struct __sk_buff, queue_mapping)), 763 BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), 764 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 765 offsetof(struct __sk_buff, protocol)), 766 BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), 767 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 768 offsetof(struct __sk_buff, vlan_present)), 769 BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), 770 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 771 offsetof(struct __sk_buff, vlan_tci)), 772 BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), 773 BPF_EXIT_INSN(), 774 }, 775 .result = ACCEPT, 776 }, 777 { 778 "access skb fields bad1", 779 .insns = { 780 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -4), 781 BPF_EXIT_INSN(), 782 }, 783 .errstr = "invalid bpf_context access", 784 .result = REJECT, 785 }, 786 { 787 "access skb fields bad2", 788 .insns = { 789 BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 9), 790 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), 791 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 792 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 793 BPF_LD_MAP_FD(BPF_REG_1, 0), 794 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 795 BPF_FUNC_map_lookup_elem), 796 BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), 797 BPF_EXIT_INSN(), 798 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), 799 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 800 offsetof(struct __sk_buff, pkt_type)), 801 BPF_EXIT_INSN(), 802 }, 803 .fixup_map1 = { 4 }, 804 .errstr = "different pointers", 805 .errstr_unpriv = "R1 pointer comparison", 806 .result = REJECT, 807 }, 808 { 809 "access skb fields bad3", 810 .insns = { 811 BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), 812 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 813 offsetof(struct __sk_buff, pkt_type)), 814 BPF_EXIT_INSN(), 815 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), 816 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 817 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 818 BPF_LD_MAP_FD(BPF_REG_1, 0), 819 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 820 BPF_FUNC_map_lookup_elem), 821 BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), 822 BPF_EXIT_INSN(), 823 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), 824 BPF_JMP_IMM(BPF_JA, 0, 0, -12), 825 }, 826 .fixup_map1 = { 6 }, 827 .errstr = "different pointers", 828 .errstr_unpriv = "R1 pointer comparison", 829 .result = REJECT, 830 }, 831 { 832 "access skb fields bad4", 833 .insns = { 834 BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 3), 835 BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, 836 offsetof(struct __sk_buff, len)), 837 BPF_MOV64_IMM(BPF_REG_0, 0), 838 BPF_EXIT_INSN(), 839 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), 840 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 841 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 842 BPF_LD_MAP_FD(BPF_REG_1, 0), 843 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 844 BPF_FUNC_map_lookup_elem), 845 BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), 846 BPF_EXIT_INSN(), 847 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), 848 BPF_JMP_IMM(BPF_JA, 0, 0, -13), 849 }, 850 .fixup_map1 = { 7 }, 851 .errstr = "different pointers", 852 .errstr_unpriv = "R1 pointer comparison", 853 .result = REJECT, 854 }, 855 { 856 "check skb->mark is not writeable by sockets", 857 .insns = { 858 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, 859 offsetof(struct __sk_buff, mark)), 860 BPF_EXIT_INSN(), 861 }, 862 .errstr = "invalid bpf_context access", 863 .errstr_unpriv = "R1 leaks addr", 864 .result = REJECT, 865 }, 866 { 867 "check skb->tc_index is not writeable by sockets", 868 .insns = { 869 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, 870 offsetof(struct __sk_buff, tc_index)), 871 BPF_EXIT_INSN(), 872 }, 873 .errstr = "invalid bpf_context access", 874 .errstr_unpriv = "R1 leaks addr", 875 .result = REJECT, 876 }, 877 { 878 "check cb access: byte", 879 .insns = { 880 BPF_MOV64_IMM(BPF_REG_0, 0), 881 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 882 offsetof(struct __sk_buff, cb[0])), 883 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 884 offsetof(struct __sk_buff, cb[0]) + 1), 885 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 886 offsetof(struct __sk_buff, cb[0]) + 2), 887 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 888 offsetof(struct __sk_buff, cb[0]) + 3), 889 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 890 offsetof(struct __sk_buff, cb[1])), 891 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 892 offsetof(struct __sk_buff, cb[1]) + 1), 893 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 894 offsetof(struct __sk_buff, cb[1]) + 2), 895 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 896 offsetof(struct __sk_buff, cb[1]) + 3), 897 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 898 offsetof(struct __sk_buff, cb[2])), 899 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 900 offsetof(struct __sk_buff, cb[2]) + 1), 901 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 902 offsetof(struct __sk_buff, cb[2]) + 2), 903 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 904 offsetof(struct __sk_buff, cb[2]) + 3), 905 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 906 offsetof(struct __sk_buff, cb[3])), 907 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 908 offsetof(struct __sk_buff, cb[3]) + 1), 909 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 910 offsetof(struct __sk_buff, cb[3]) + 2), 911 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 912 offsetof(struct __sk_buff, cb[3]) + 3), 913 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 914 offsetof(struct __sk_buff, cb[4])), 915 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 916 offsetof(struct __sk_buff, cb[4]) + 1), 917 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 918 offsetof(struct __sk_buff, cb[4]) + 2), 919 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 920 offsetof(struct __sk_buff, cb[4]) + 3), 921 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, 922 offsetof(struct __sk_buff, cb[0])), 923 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, 924 offsetof(struct __sk_buff, cb[0]) + 1), 925 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, 926 offsetof(struct __sk_buff, cb[0]) + 2), 927 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, 928 offsetof(struct __sk_buff, cb[0]) + 3), 929 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, 930 offsetof(struct __sk_buff, cb[1])), 931 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, 932 offsetof(struct __sk_buff, cb[1]) + 1), 933 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, 934 offsetof(struct __sk_buff, cb[1]) + 2), 935 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, 936 offsetof(struct __sk_buff, cb[1]) + 3), 937 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, 938 offsetof(struct __sk_buff, cb[2])), 939 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, 940 offsetof(struct __sk_buff, cb[2]) + 1), 941 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, 942 offsetof(struct __sk_buff, cb[2]) + 2), 943 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, 944 offsetof(struct __sk_buff, cb[2]) + 3), 945 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, 946 offsetof(struct __sk_buff, cb[3])), 947 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, 948 offsetof(struct __sk_buff, cb[3]) + 1), 949 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, 950 offsetof(struct __sk_buff, cb[3]) + 2), 951 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, 952 offsetof(struct __sk_buff, cb[3]) + 3), 953 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, 954 offsetof(struct __sk_buff, cb[4])), 955 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, 956 offsetof(struct __sk_buff, cb[4]) + 1), 957 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, 958 offsetof(struct __sk_buff, cb[4]) + 2), 959 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, 960 offsetof(struct __sk_buff, cb[4]) + 3), 961 BPF_EXIT_INSN(), 962 }, 963 .result = ACCEPT, 964 }, 965 { 966 "check cb access: byte, oob 1", 967 .insns = { 968 BPF_MOV64_IMM(BPF_REG_0, 0), 969 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 970 offsetof(struct __sk_buff, cb[4]) + 4), 971 BPF_EXIT_INSN(), 972 }, 973 .errstr = "invalid bpf_context access", 974 .result = REJECT, 975 }, 976 { 977 "check cb access: byte, oob 2", 978 .insns = { 979 BPF_MOV64_IMM(BPF_REG_0, 0), 980 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 981 offsetof(struct __sk_buff, cb[0]) - 1), 982 BPF_EXIT_INSN(), 983 }, 984 .errstr = "invalid bpf_context access", 985 .result = REJECT, 986 }, 987 { 988 "check cb access: byte, oob 3", 989 .insns = { 990 BPF_MOV64_IMM(BPF_REG_0, 0), 991 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, 992 offsetof(struct __sk_buff, cb[4]) + 4), 993 BPF_EXIT_INSN(), 994 }, 995 .errstr = "invalid bpf_context access", 996 .result = REJECT, 997 }, 998 { 999 "check cb access: byte, oob 4", 1000 .insns = { 1001 BPF_MOV64_IMM(BPF_REG_0, 0), 1002 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, 1003 offsetof(struct __sk_buff, cb[0]) - 1), 1004 BPF_EXIT_INSN(), 1005 }, 1006 .errstr = "invalid bpf_context access", 1007 .result = REJECT, 1008 }, 1009 { 1010 "check cb access: byte, wrong type", 1011 .insns = { 1012 BPF_MOV64_IMM(BPF_REG_0, 0), 1013 BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 1014 offsetof(struct __sk_buff, cb[0])), 1015 BPF_EXIT_INSN(), 1016 }, 1017 .errstr = "invalid bpf_context access", 1018 .result = REJECT, 1019 .prog_type = BPF_PROG_TYPE_CGROUP_SOCK, 1020 }, 1021 { 1022 "check cb access: half", 1023 .insns = { 1024 BPF_MOV64_IMM(BPF_REG_0, 0), 1025 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, 1026 offsetof(struct __sk_buff, cb[0])), 1027 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, 1028 offsetof(struct __sk_buff, cb[0]) + 2), 1029 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, 1030 offsetof(struct __sk_buff, cb[1])), 1031 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, 1032 offsetof(struct __sk_buff, cb[1]) + 2), 1033 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, 1034 offsetof(struct __sk_buff, cb[2])), 1035 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, 1036 offsetof(struct __sk_buff, cb[2]) + 2), 1037 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, 1038 offsetof(struct __sk_buff, cb[3])), 1039 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, 1040 offsetof(struct __sk_buff, cb[3]) + 2), 1041 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, 1042 offsetof(struct __sk_buff, cb[4])), 1043 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, 1044 offsetof(struct __sk_buff, cb[4]) + 2), 1045 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, 1046 offsetof(struct __sk_buff, cb[0])), 1047 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, 1048 offsetof(struct __sk_buff, cb[0]) + 2), 1049 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, 1050 offsetof(struct __sk_buff, cb[1])), 1051 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, 1052 offsetof(struct __sk_buff, cb[1]) + 2), 1053 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, 1054 offsetof(struct __sk_buff, cb[2])), 1055 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, 1056 offsetof(struct __sk_buff, cb[2]) + 2), 1057 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, 1058 offsetof(struct __sk_buff, cb[3])), 1059 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, 1060 offsetof(struct __sk_buff, cb[3]) + 2), 1061 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, 1062 offsetof(struct __sk_buff, cb[4])), 1063 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, 1064 offsetof(struct __sk_buff, cb[4]) + 2), 1065 BPF_EXIT_INSN(), 1066 }, 1067 .result = ACCEPT, 1068 }, 1069 { 1070 "check cb access: half, unaligned", 1071 .insns = { 1072 BPF_MOV64_IMM(BPF_REG_0, 0), 1073 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, 1074 offsetof(struct __sk_buff, cb[0]) + 1), 1075 BPF_EXIT_INSN(), 1076 }, 1077 .errstr = "misaligned access", 1078 .result = REJECT, 1079 }, 1080 { 1081 "check cb access: half, oob 1", 1082 .insns = { 1083 BPF_MOV64_IMM(BPF_REG_0, 0), 1084 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, 1085 offsetof(struct __sk_buff, cb[4]) + 4), 1086 BPF_EXIT_INSN(), 1087 }, 1088 .errstr = "invalid bpf_context access", 1089 .result = REJECT, 1090 }, 1091 { 1092 "check cb access: half, oob 2", 1093 .insns = { 1094 BPF_MOV64_IMM(BPF_REG_0, 0), 1095 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, 1096 offsetof(struct __sk_buff, cb[0]) - 2), 1097 BPF_EXIT_INSN(), 1098 }, 1099 .errstr = "invalid bpf_context access", 1100 .result = REJECT, 1101 }, 1102 { 1103 "check cb access: half, oob 3", 1104 .insns = { 1105 BPF_MOV64_IMM(BPF_REG_0, 0), 1106 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, 1107 offsetof(struct __sk_buff, cb[4]) + 4), 1108 BPF_EXIT_INSN(), 1109 }, 1110 .errstr = "invalid bpf_context access", 1111 .result = REJECT, 1112 }, 1113 { 1114 "check cb access: half, oob 4", 1115 .insns = { 1116 BPF_MOV64_IMM(BPF_REG_0, 0), 1117 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, 1118 offsetof(struct __sk_buff, cb[0]) - 2), 1119 BPF_EXIT_INSN(), 1120 }, 1121 .errstr = "invalid bpf_context access", 1122 .result = REJECT, 1123 }, 1124 { 1125 "check cb access: half, wrong type", 1126 .insns = { 1127 BPF_MOV64_IMM(BPF_REG_0, 0), 1128 BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, 1129 offsetof(struct __sk_buff, cb[0])), 1130 BPF_EXIT_INSN(), 1131 }, 1132 .errstr = "invalid bpf_context access", 1133 .result = REJECT, 1134 .prog_type = BPF_PROG_TYPE_CGROUP_SOCK, 1135 }, 1136 { 1137 "check cb access: word", 1138 .insns = { 1139 BPF_MOV64_IMM(BPF_REG_0, 0), 1140 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 1141 offsetof(struct __sk_buff, cb[0])), 1142 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 1143 offsetof(struct __sk_buff, cb[1])), 1144 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 1145 offsetof(struct __sk_buff, cb[2])), 1146 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 1147 offsetof(struct __sk_buff, cb[3])), 1148 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 1149 offsetof(struct __sk_buff, cb[4])), 1150 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 1151 offsetof(struct __sk_buff, cb[0])), 1152 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 1153 offsetof(struct __sk_buff, cb[1])), 1154 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 1155 offsetof(struct __sk_buff, cb[2])), 1156 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 1157 offsetof(struct __sk_buff, cb[3])), 1158 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 1159 offsetof(struct __sk_buff, cb[4])), 1160 BPF_EXIT_INSN(), 1161 }, 1162 .result = ACCEPT, 1163 }, 1164 { 1165 "check cb access: word, unaligned 1", 1166 .insns = { 1167 BPF_MOV64_IMM(BPF_REG_0, 0), 1168 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 1169 offsetof(struct __sk_buff, cb[0]) + 2), 1170 BPF_EXIT_INSN(), 1171 }, 1172 .errstr = "misaligned access", 1173 .result = REJECT, 1174 }, 1175 { 1176 "check cb access: word, unaligned 2", 1177 .insns = { 1178 BPF_MOV64_IMM(BPF_REG_0, 0), 1179 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 1180 offsetof(struct __sk_buff, cb[4]) + 1), 1181 BPF_EXIT_INSN(), 1182 }, 1183 .errstr = "misaligned access", 1184 .result = REJECT, 1185 }, 1186 { 1187 "check cb access: word, unaligned 3", 1188 .insns = { 1189 BPF_MOV64_IMM(BPF_REG_0, 0), 1190 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 1191 offsetof(struct __sk_buff, cb[4]) + 2), 1192 BPF_EXIT_INSN(), 1193 }, 1194 .errstr = "misaligned access", 1195 .result = REJECT, 1196 }, 1197 { 1198 "check cb access: word, unaligned 4", 1199 .insns = { 1200 BPF_MOV64_IMM(BPF_REG_0, 0), 1201 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 1202 offsetof(struct __sk_buff, cb[4]) + 3), 1203 BPF_EXIT_INSN(), 1204 }, 1205 .errstr = "misaligned access", 1206 .result = REJECT, 1207 }, 1208 { 1209 "check cb access: double", 1210 .insns = { 1211 BPF_MOV64_IMM(BPF_REG_0, 0), 1212 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 1213 offsetof(struct __sk_buff, cb[0])), 1214 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 1215 offsetof(struct __sk_buff, cb[2])), 1216 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 1217 offsetof(struct __sk_buff, cb[0])), 1218 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 1219 offsetof(struct __sk_buff, cb[2])), 1220 BPF_EXIT_INSN(), 1221 }, 1222 .result = ACCEPT, 1223 }, 1224 { 1225 "check cb access: double, unaligned 1", 1226 .insns = { 1227 BPF_MOV64_IMM(BPF_REG_0, 0), 1228 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 1229 offsetof(struct __sk_buff, cb[1])), 1230 BPF_EXIT_INSN(), 1231 }, 1232 .errstr = "misaligned access", 1233 .result = REJECT, 1234 }, 1235 { 1236 "check cb access: double, unaligned 2", 1237 .insns = { 1238 BPF_MOV64_IMM(BPF_REG_0, 0), 1239 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 1240 offsetof(struct __sk_buff, cb[3])), 1241 BPF_EXIT_INSN(), 1242 }, 1243 .errstr = "misaligned access", 1244 .result = REJECT, 1245 }, 1246 { 1247 "check cb access: double, oob 1", 1248 .insns = { 1249 BPF_MOV64_IMM(BPF_REG_0, 0), 1250 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 1251 offsetof(struct __sk_buff, cb[4])), 1252 BPF_EXIT_INSN(), 1253 }, 1254 .errstr = "invalid bpf_context access", 1255 .result = REJECT, 1256 }, 1257 { 1258 "check cb access: double, oob 2", 1259 .insns = { 1260 BPF_MOV64_IMM(BPF_REG_0, 0), 1261 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 1262 offsetof(struct __sk_buff, cb[4]) + 8), 1263 BPF_EXIT_INSN(), 1264 }, 1265 .errstr = "invalid bpf_context access", 1266 .result = REJECT, 1267 }, 1268 { 1269 "check cb access: double, oob 3", 1270 .insns = { 1271 BPF_MOV64_IMM(BPF_REG_0, 0), 1272 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 1273 offsetof(struct __sk_buff, cb[0]) - 8), 1274 BPF_EXIT_INSN(), 1275 }, 1276 .errstr = "invalid bpf_context access", 1277 .result = REJECT, 1278 }, 1279 { 1280 "check cb access: double, oob 4", 1281 .insns = { 1282 BPF_MOV64_IMM(BPF_REG_0, 0), 1283 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 1284 offsetof(struct __sk_buff, cb[4])), 1285 BPF_EXIT_INSN(), 1286 }, 1287 .errstr = "invalid bpf_context access", 1288 .result = REJECT, 1289 }, 1290 { 1291 "check cb access: double, oob 5", 1292 .insns = { 1293 BPF_MOV64_IMM(BPF_REG_0, 0), 1294 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 1295 offsetof(struct __sk_buff, cb[4]) + 8), 1296 BPF_EXIT_INSN(), 1297 }, 1298 .errstr = "invalid bpf_context access", 1299 .result = REJECT, 1300 }, 1301 { 1302 "check cb access: double, oob 6", 1303 .insns = { 1304 BPF_MOV64_IMM(BPF_REG_0, 0), 1305 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 1306 offsetof(struct __sk_buff, cb[0]) - 8), 1307 BPF_EXIT_INSN(), 1308 }, 1309 .errstr = "invalid bpf_context access", 1310 .result = REJECT, 1311 }, 1312 { 1313 "check cb access: double, wrong type", 1314 .insns = { 1315 BPF_MOV64_IMM(BPF_REG_0, 0), 1316 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 1317 offsetof(struct __sk_buff, cb[0])), 1318 BPF_EXIT_INSN(), 1319 }, 1320 .errstr = "invalid bpf_context access", 1321 .result = REJECT, 1322 .prog_type = BPF_PROG_TYPE_CGROUP_SOCK, 1323 }, 1324 { 1325 "check out of range skb->cb access", 1326 .insns = { 1327 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 1328 offsetof(struct __sk_buff, cb[0]) + 256), 1329 BPF_EXIT_INSN(), 1330 }, 1331 .errstr = "invalid bpf_context access", 1332 .errstr_unpriv = "", 1333 .result = REJECT, 1334 .prog_type = BPF_PROG_TYPE_SCHED_ACT, 1335 }, 1336 { 1337 "write skb fields from socket prog", 1338 .insns = { 1339 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 1340 offsetof(struct __sk_buff, cb[4])), 1341 BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), 1342 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 1343 offsetof(struct __sk_buff, mark)), 1344 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 1345 offsetof(struct __sk_buff, tc_index)), 1346 BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), 1347 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, 1348 offsetof(struct __sk_buff, cb[0])), 1349 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, 1350 offsetof(struct __sk_buff, cb[2])), 1351 BPF_EXIT_INSN(), 1352 }, 1353 .result = ACCEPT, 1354 .errstr_unpriv = "R1 leaks addr", 1355 .result_unpriv = REJECT, 1356 }, 1357 { 1358 "write skb fields from tc_cls_act prog", 1359 .insns = { 1360 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 1361 offsetof(struct __sk_buff, cb[0])), 1362 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 1363 offsetof(struct __sk_buff, mark)), 1364 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 1365 offsetof(struct __sk_buff, tc_index)), 1366 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 1367 offsetof(struct __sk_buff, tc_index)), 1368 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 1369 offsetof(struct __sk_buff, cb[3])), 1370 BPF_EXIT_INSN(), 1371 }, 1372 .errstr_unpriv = "", 1373 .result_unpriv = REJECT, 1374 .result = ACCEPT, 1375 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 1376 }, 1377 { 1378 "PTR_TO_STACK store/load", 1379 .insns = { 1380 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), 1381 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -10), 1382 BPF_ST_MEM(BPF_DW, BPF_REG_1, 2, 0xfaceb00c), 1383 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 2), 1384 BPF_EXIT_INSN(), 1385 }, 1386 .result = ACCEPT, 1387 }, 1388 { 1389 "PTR_TO_STACK store/load - bad alignment on off", 1390 .insns = { 1391 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), 1392 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8), 1393 BPF_ST_MEM(BPF_DW, BPF_REG_1, 2, 0xfaceb00c), 1394 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 2), 1395 BPF_EXIT_INSN(), 1396 }, 1397 .result = REJECT, 1398 .errstr = "misaligned access off -6 size 8", 1399 }, 1400 { 1401 "PTR_TO_STACK store/load - bad alignment on reg", 1402 .insns = { 1403 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), 1404 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -10), 1405 BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c), 1406 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8), 1407 BPF_EXIT_INSN(), 1408 }, 1409 .result = REJECT, 1410 .errstr = "misaligned access off -2 size 8", 1411 }, 1412 { 1413 "PTR_TO_STACK store/load - out of bounds low", 1414 .insns = { 1415 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), 1416 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -80000), 1417 BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c), 1418 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8), 1419 BPF_EXIT_INSN(), 1420 }, 1421 .result = REJECT, 1422 .errstr = "invalid stack off=-79992 size=8", 1423 }, 1424 { 1425 "PTR_TO_STACK store/load - out of bounds high", 1426 .insns = { 1427 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), 1428 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8), 1429 BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c), 1430 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8), 1431 BPF_EXIT_INSN(), 1432 }, 1433 .result = REJECT, 1434 .errstr = "invalid stack off=0 size=8", 1435 }, 1436 { 1437 "unpriv: return pointer", 1438 .insns = { 1439 BPF_MOV64_REG(BPF_REG_0, BPF_REG_10), 1440 BPF_EXIT_INSN(), 1441 }, 1442 .result = ACCEPT, 1443 .result_unpriv = REJECT, 1444 .errstr_unpriv = "R0 leaks addr", 1445 }, 1446 { 1447 "unpriv: add const to pointer", 1448 .insns = { 1449 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), 1450 BPF_MOV64_IMM(BPF_REG_0, 0), 1451 BPF_EXIT_INSN(), 1452 }, 1453 .result = ACCEPT, 1454 .result_unpriv = REJECT, 1455 .errstr_unpriv = "R1 pointer arithmetic", 1456 }, 1457 { 1458 "unpriv: add pointer to pointer", 1459 .insns = { 1460 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_10), 1461 BPF_MOV64_IMM(BPF_REG_0, 0), 1462 BPF_EXIT_INSN(), 1463 }, 1464 .result = ACCEPT, 1465 .result_unpriv = REJECT, 1466 .errstr_unpriv = "R1 pointer arithmetic", 1467 }, 1468 { 1469 "unpriv: neg pointer", 1470 .insns = { 1471 BPF_ALU64_IMM(BPF_NEG, BPF_REG_1, 0), 1472 BPF_MOV64_IMM(BPF_REG_0, 0), 1473 BPF_EXIT_INSN(), 1474 }, 1475 .result = ACCEPT, 1476 .result_unpriv = REJECT, 1477 .errstr_unpriv = "R1 pointer arithmetic", 1478 }, 1479 { 1480 "unpriv: cmp pointer with const", 1481 .insns = { 1482 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 0), 1483 BPF_MOV64_IMM(BPF_REG_0, 0), 1484 BPF_EXIT_INSN(), 1485 }, 1486 .result = ACCEPT, 1487 .result_unpriv = REJECT, 1488 .errstr_unpriv = "R1 pointer comparison", 1489 }, 1490 { 1491 "unpriv: cmp pointer with pointer", 1492 .insns = { 1493 BPF_JMP_REG(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), 1494 BPF_MOV64_IMM(BPF_REG_0, 0), 1495 BPF_EXIT_INSN(), 1496 }, 1497 .result = ACCEPT, 1498 .result_unpriv = REJECT, 1499 .errstr_unpriv = "R10 pointer comparison", 1500 }, 1501 { 1502 "unpriv: check that printk is disallowed", 1503 .insns = { 1504 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), 1505 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), 1506 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8), 1507 BPF_MOV64_IMM(BPF_REG_2, 8), 1508 BPF_MOV64_REG(BPF_REG_3, BPF_REG_1), 1509 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 1510 BPF_FUNC_trace_printk), 1511 BPF_MOV64_IMM(BPF_REG_0, 0), 1512 BPF_EXIT_INSN(), 1513 }, 1514 .errstr_unpriv = "unknown func bpf_trace_printk#6", 1515 .result_unpriv = REJECT, 1516 .result = ACCEPT, 1517 }, 1518 { 1519 "unpriv: pass pointer to helper function", 1520 .insns = { 1521 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), 1522 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 1523 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 1524 BPF_LD_MAP_FD(BPF_REG_1, 0), 1525 BPF_MOV64_REG(BPF_REG_3, BPF_REG_2), 1526 BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), 1527 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 1528 BPF_FUNC_map_update_elem), 1529 BPF_MOV64_IMM(BPF_REG_0, 0), 1530 BPF_EXIT_INSN(), 1531 }, 1532 .fixup_map1 = { 3 }, 1533 .errstr_unpriv = "R4 leaks addr", 1534 .result_unpriv = REJECT, 1535 .result = ACCEPT, 1536 }, 1537 { 1538 "unpriv: indirectly pass pointer on stack to helper function", 1539 .insns = { 1540 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8), 1541 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 1542 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 1543 BPF_LD_MAP_FD(BPF_REG_1, 0), 1544 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 1545 BPF_FUNC_map_lookup_elem), 1546 BPF_MOV64_IMM(BPF_REG_0, 0), 1547 BPF_EXIT_INSN(), 1548 }, 1549 .fixup_map1 = { 3 }, 1550 .errstr = "invalid indirect read from stack off -8+0 size 8", 1551 .result = REJECT, 1552 }, 1553 { 1554 "unpriv: mangle pointer on stack 1", 1555 .insns = { 1556 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8), 1557 BPF_ST_MEM(BPF_W, BPF_REG_10, -8, 0), 1558 BPF_MOV64_IMM(BPF_REG_0, 0), 1559 BPF_EXIT_INSN(), 1560 }, 1561 .errstr_unpriv = "attempt to corrupt spilled", 1562 .result_unpriv = REJECT, 1563 .result = ACCEPT, 1564 }, 1565 { 1566 "unpriv: mangle pointer on stack 2", 1567 .insns = { 1568 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8), 1569 BPF_ST_MEM(BPF_B, BPF_REG_10, -1, 0), 1570 BPF_MOV64_IMM(BPF_REG_0, 0), 1571 BPF_EXIT_INSN(), 1572 }, 1573 .errstr_unpriv = "attempt to corrupt spilled", 1574 .result_unpriv = REJECT, 1575 .result = ACCEPT, 1576 }, 1577 { 1578 "unpriv: read pointer from stack in small chunks", 1579 .insns = { 1580 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8), 1581 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_10, -8), 1582 BPF_MOV64_IMM(BPF_REG_0, 0), 1583 BPF_EXIT_INSN(), 1584 }, 1585 .errstr = "invalid size", 1586 .result = REJECT, 1587 }, 1588 { 1589 "unpriv: write pointer into ctx", 1590 .insns = { 1591 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, 0), 1592 BPF_MOV64_IMM(BPF_REG_0, 0), 1593 BPF_EXIT_INSN(), 1594 }, 1595 .errstr_unpriv = "R1 leaks addr", 1596 .result_unpriv = REJECT, 1597 .errstr = "invalid bpf_context access", 1598 .result = REJECT, 1599 }, 1600 { 1601 "unpriv: spill/fill of ctx", 1602 .insns = { 1603 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), 1604 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), 1605 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), 1606 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), 1607 BPF_MOV64_IMM(BPF_REG_0, 0), 1608 BPF_EXIT_INSN(), 1609 }, 1610 .result = ACCEPT, 1611 }, 1612 { 1613 "unpriv: spill/fill of ctx 2", 1614 .insns = { 1615 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), 1616 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), 1617 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), 1618 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), 1619 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 1620 BPF_FUNC_get_hash_recalc), 1621 BPF_EXIT_INSN(), 1622 }, 1623 .result = ACCEPT, 1624 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 1625 }, 1626 { 1627 "unpriv: spill/fill of ctx 3", 1628 .insns = { 1629 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), 1630 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), 1631 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), 1632 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_10, 0), 1633 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), 1634 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 1635 BPF_FUNC_get_hash_recalc), 1636 BPF_EXIT_INSN(), 1637 }, 1638 .result = REJECT, 1639 .errstr = "R1 type=fp expected=ctx", 1640 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 1641 }, 1642 { 1643 "unpriv: spill/fill of ctx 4", 1644 .insns = { 1645 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), 1646 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), 1647 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), 1648 BPF_MOV64_IMM(BPF_REG_0, 1), 1649 BPF_RAW_INSN(BPF_STX | BPF_XADD | BPF_DW, BPF_REG_10, 1650 BPF_REG_0, -8, 0), 1651 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), 1652 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 1653 BPF_FUNC_get_hash_recalc), 1654 BPF_EXIT_INSN(), 1655 }, 1656 .result = REJECT, 1657 .errstr = "R1 type=inv expected=ctx", 1658 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 1659 }, 1660 { 1661 "unpriv: spill/fill of different pointers stx", 1662 .insns = { 1663 BPF_MOV64_IMM(BPF_REG_3, 42), 1664 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), 1665 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), 1666 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3), 1667 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 1668 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16), 1669 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_2, 0), 1670 BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 1), 1671 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), 1672 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), 1673 BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_3, 1674 offsetof(struct __sk_buff, mark)), 1675 BPF_MOV64_IMM(BPF_REG_0, 0), 1676 BPF_EXIT_INSN(), 1677 }, 1678 .result = REJECT, 1679 .errstr = "same insn cannot be used with different pointers", 1680 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 1681 }, 1682 { 1683 "unpriv: spill/fill of different pointers ldx", 1684 .insns = { 1685 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), 1686 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), 1687 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3), 1688 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 1689 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1690 -(__s32)offsetof(struct bpf_perf_event_data, 1691 sample_period) - 8), 1692 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_2, 0), 1693 BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 1), 1694 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), 1695 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), 1696 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, 1697 offsetof(struct bpf_perf_event_data, 1698 sample_period)), 1699 BPF_MOV64_IMM(BPF_REG_0, 0), 1700 BPF_EXIT_INSN(), 1701 }, 1702 .result = REJECT, 1703 .errstr = "same insn cannot be used with different pointers", 1704 .prog_type = BPF_PROG_TYPE_PERF_EVENT, 1705 }, 1706 { 1707 "unpriv: write pointer into map elem value", 1708 .insns = { 1709 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), 1710 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 1711 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 1712 BPF_LD_MAP_FD(BPF_REG_1, 0), 1713 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 1714 BPF_FUNC_map_lookup_elem), 1715 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), 1716 BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0), 1717 BPF_EXIT_INSN(), 1718 }, 1719 .fixup_map1 = { 3 }, 1720 .errstr_unpriv = "R0 leaks addr", 1721 .result_unpriv = REJECT, 1722 .result = ACCEPT, 1723 }, 1724 { 1725 "unpriv: partial copy of pointer", 1726 .insns = { 1727 BPF_MOV32_REG(BPF_REG_1, BPF_REG_10), 1728 BPF_MOV64_IMM(BPF_REG_0, 0), 1729 BPF_EXIT_INSN(), 1730 }, 1731 .errstr_unpriv = "R10 partial copy", 1732 .result_unpriv = REJECT, 1733 .result = ACCEPT, 1734 }, 1735 { 1736 "unpriv: pass pointer to tail_call", 1737 .insns = { 1738 BPF_MOV64_REG(BPF_REG_3, BPF_REG_1), 1739 BPF_LD_MAP_FD(BPF_REG_2, 0), 1740 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 1741 BPF_FUNC_tail_call), 1742 BPF_MOV64_IMM(BPF_REG_0, 0), 1743 BPF_EXIT_INSN(), 1744 }, 1745 .fixup_prog = { 1 }, 1746 .errstr_unpriv = "R3 leaks addr into helper", 1747 .result_unpriv = REJECT, 1748 .result = ACCEPT, 1749 }, 1750 { 1751 "unpriv: cmp map pointer with zero", 1752 .insns = { 1753 BPF_MOV64_IMM(BPF_REG_1, 0), 1754 BPF_LD_MAP_FD(BPF_REG_1, 0), 1755 BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 0), 1756 BPF_MOV64_IMM(BPF_REG_0, 0), 1757 BPF_EXIT_INSN(), 1758 }, 1759 .fixup_map1 = { 1 }, 1760 .errstr_unpriv = "R1 pointer comparison", 1761 .result_unpriv = REJECT, 1762 .result = ACCEPT, 1763 }, 1764 { 1765 "unpriv: write into frame pointer", 1766 .insns = { 1767 BPF_MOV64_REG(BPF_REG_10, BPF_REG_1), 1768 BPF_MOV64_IMM(BPF_REG_0, 0), 1769 BPF_EXIT_INSN(), 1770 }, 1771 .errstr = "frame pointer is read only", 1772 .result = REJECT, 1773 }, 1774 { 1775 "unpriv: spill/fill frame pointer", 1776 .insns = { 1777 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), 1778 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), 1779 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_10, 0), 1780 BPF_LDX_MEM(BPF_DW, BPF_REG_10, BPF_REG_6, 0), 1781 BPF_MOV64_IMM(BPF_REG_0, 0), 1782 BPF_EXIT_INSN(), 1783 }, 1784 .errstr = "frame pointer is read only", 1785 .result = REJECT, 1786 }, 1787 { 1788 "unpriv: cmp of frame pointer", 1789 .insns = { 1790 BPF_JMP_IMM(BPF_JEQ, BPF_REG_10, 0, 0), 1791 BPF_MOV64_IMM(BPF_REG_0, 0), 1792 BPF_EXIT_INSN(), 1793 }, 1794 .errstr_unpriv = "R10 pointer comparison", 1795 .result_unpriv = REJECT, 1796 .result = ACCEPT, 1797 }, 1798 { 1799 "unpriv: cmp of stack pointer", 1800 .insns = { 1801 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 1802 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 1803 BPF_JMP_IMM(BPF_JEQ, BPF_REG_2, 0, 0), 1804 BPF_MOV64_IMM(BPF_REG_0, 0), 1805 BPF_EXIT_INSN(), 1806 }, 1807 .errstr_unpriv = "R2 pointer comparison", 1808 .result_unpriv = REJECT, 1809 .result = ACCEPT, 1810 }, 1811 { 1812 "unpriv: obfuscate stack pointer", 1813 .insns = { 1814 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 1815 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 1816 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 1817 BPF_MOV64_IMM(BPF_REG_0, 0), 1818 BPF_EXIT_INSN(), 1819 }, 1820 .errstr_unpriv = "R2 pointer arithmetic", 1821 .result_unpriv = REJECT, 1822 .result = ACCEPT, 1823 }, 1824 { 1825 "raw_stack: no skb_load_bytes", 1826 .insns = { 1827 BPF_MOV64_IMM(BPF_REG_2, 4), 1828 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), 1829 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), 1830 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), 1831 BPF_MOV64_IMM(BPF_REG_4, 8), 1832 /* Call to skb_load_bytes() omitted. */ 1833 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), 1834 BPF_EXIT_INSN(), 1835 }, 1836 .result = REJECT, 1837 .errstr = "invalid read from stack off -8+0 size 8", 1838 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 1839 }, 1840 { 1841 "raw_stack: skb_load_bytes, negative len", 1842 .insns = { 1843 BPF_MOV64_IMM(BPF_REG_2, 4), 1844 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), 1845 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), 1846 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), 1847 BPF_MOV64_IMM(BPF_REG_4, -8), 1848 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 1849 BPF_FUNC_skb_load_bytes), 1850 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), 1851 BPF_EXIT_INSN(), 1852 }, 1853 .result = REJECT, 1854 .errstr = "invalid stack type R3", 1855 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 1856 }, 1857 { 1858 "raw_stack: skb_load_bytes, negative len 2", 1859 .insns = { 1860 BPF_MOV64_IMM(BPF_REG_2, 4), 1861 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), 1862 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), 1863 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), 1864 BPF_MOV64_IMM(BPF_REG_4, ~0), 1865 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 1866 BPF_FUNC_skb_load_bytes), 1867 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), 1868 BPF_EXIT_INSN(), 1869 }, 1870 .result = REJECT, 1871 .errstr = "invalid stack type R3", 1872 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 1873 }, 1874 { 1875 "raw_stack: skb_load_bytes, zero len", 1876 .insns = { 1877 BPF_MOV64_IMM(BPF_REG_2, 4), 1878 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), 1879 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), 1880 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), 1881 BPF_MOV64_IMM(BPF_REG_4, 0), 1882 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 1883 BPF_FUNC_skb_load_bytes), 1884 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), 1885 BPF_EXIT_INSN(), 1886 }, 1887 .result = REJECT, 1888 .errstr = "invalid stack type R3", 1889 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 1890 }, 1891 { 1892 "raw_stack: skb_load_bytes, no init", 1893 .insns = { 1894 BPF_MOV64_IMM(BPF_REG_2, 4), 1895 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), 1896 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), 1897 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), 1898 BPF_MOV64_IMM(BPF_REG_4, 8), 1899 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 1900 BPF_FUNC_skb_load_bytes), 1901 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), 1902 BPF_EXIT_INSN(), 1903 }, 1904 .result = ACCEPT, 1905 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 1906 }, 1907 { 1908 "raw_stack: skb_load_bytes, init", 1909 .insns = { 1910 BPF_MOV64_IMM(BPF_REG_2, 4), 1911 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), 1912 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), 1913 BPF_ST_MEM(BPF_DW, BPF_REG_6, 0, 0xcafe), 1914 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), 1915 BPF_MOV64_IMM(BPF_REG_4, 8), 1916 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 1917 BPF_FUNC_skb_load_bytes), 1918 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), 1919 BPF_EXIT_INSN(), 1920 }, 1921 .result = ACCEPT, 1922 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 1923 }, 1924 { 1925 "raw_stack: skb_load_bytes, spilled regs around bounds", 1926 .insns = { 1927 BPF_MOV64_IMM(BPF_REG_2, 4), 1928 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), 1929 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16), 1930 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8), 1931 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8), 1932 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), 1933 BPF_MOV64_IMM(BPF_REG_4, 8), 1934 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 1935 BPF_FUNC_skb_load_bytes), 1936 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8), 1937 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 8), 1938 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, 1939 offsetof(struct __sk_buff, mark)), 1940 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2, 1941 offsetof(struct __sk_buff, priority)), 1942 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), 1943 BPF_EXIT_INSN(), 1944 }, 1945 .result = ACCEPT, 1946 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 1947 }, 1948 { 1949 "raw_stack: skb_load_bytes, spilled regs corruption", 1950 .insns = { 1951 BPF_MOV64_IMM(BPF_REG_2, 4), 1952 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), 1953 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), 1954 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), 1955 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), 1956 BPF_MOV64_IMM(BPF_REG_4, 8), 1957 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 1958 BPF_FUNC_skb_load_bytes), 1959 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), 1960 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, 1961 offsetof(struct __sk_buff, mark)), 1962 BPF_EXIT_INSN(), 1963 }, 1964 .result = REJECT, 1965 .errstr = "R0 invalid mem access 'inv'", 1966 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 1967 }, 1968 { 1969 "raw_stack: skb_load_bytes, spilled regs corruption 2", 1970 .insns = { 1971 BPF_MOV64_IMM(BPF_REG_2, 4), 1972 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), 1973 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16), 1974 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8), 1975 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), 1976 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8), 1977 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), 1978 BPF_MOV64_IMM(BPF_REG_4, 8), 1979 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 1980 BPF_FUNC_skb_load_bytes), 1981 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8), 1982 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 8), 1983 BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_6, 0), 1984 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, 1985 offsetof(struct __sk_buff, mark)), 1986 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2, 1987 offsetof(struct __sk_buff, priority)), 1988 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), 1989 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_3, 1990 offsetof(struct __sk_buff, pkt_type)), 1991 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_3), 1992 BPF_EXIT_INSN(), 1993 }, 1994 .result = REJECT, 1995 .errstr = "R3 invalid mem access 'inv'", 1996 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 1997 }, 1998 { 1999 "raw_stack: skb_load_bytes, spilled regs + data", 2000 .insns = { 2001 BPF_MOV64_IMM(BPF_REG_2, 4), 2002 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), 2003 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16), 2004 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8), 2005 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), 2006 BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 8), 2007 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), 2008 BPF_MOV64_IMM(BPF_REG_4, 8), 2009 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 2010 BPF_FUNC_skb_load_bytes), 2011 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8), 2012 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 8), 2013 BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_6, 0), 2014 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, 2015 offsetof(struct __sk_buff, mark)), 2016 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2, 2017 offsetof(struct __sk_buff, priority)), 2018 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), 2019 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_3), 2020 BPF_EXIT_INSN(), 2021 }, 2022 .result = ACCEPT, 2023 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 2024 }, 2025 { 2026 "raw_stack: skb_load_bytes, invalid access 1", 2027 .insns = { 2028 BPF_MOV64_IMM(BPF_REG_2, 4), 2029 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), 2030 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -513), 2031 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), 2032 BPF_MOV64_IMM(BPF_REG_4, 8), 2033 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 2034 BPF_FUNC_skb_load_bytes), 2035 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), 2036 BPF_EXIT_INSN(), 2037 }, 2038 .result = REJECT, 2039 .errstr = "invalid stack type R3 off=-513 access_size=8", 2040 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 2041 }, 2042 { 2043 "raw_stack: skb_load_bytes, invalid access 2", 2044 .insns = { 2045 BPF_MOV64_IMM(BPF_REG_2, 4), 2046 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), 2047 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -1), 2048 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), 2049 BPF_MOV64_IMM(BPF_REG_4, 8), 2050 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 2051 BPF_FUNC_skb_load_bytes), 2052 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), 2053 BPF_EXIT_INSN(), 2054 }, 2055 .result = REJECT, 2056 .errstr = "invalid stack type R3 off=-1 access_size=8", 2057 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 2058 }, 2059 { 2060 "raw_stack: skb_load_bytes, invalid access 3", 2061 .insns = { 2062 BPF_MOV64_IMM(BPF_REG_2, 4), 2063 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), 2064 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 0xffffffff), 2065 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), 2066 BPF_MOV64_IMM(BPF_REG_4, 0xffffffff), 2067 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 2068 BPF_FUNC_skb_load_bytes), 2069 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), 2070 BPF_EXIT_INSN(), 2071 }, 2072 .result = REJECT, 2073 .errstr = "invalid stack type R3 off=-1 access_size=-1", 2074 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 2075 }, 2076 { 2077 "raw_stack: skb_load_bytes, invalid access 4", 2078 .insns = { 2079 BPF_MOV64_IMM(BPF_REG_2, 4), 2080 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), 2081 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -1), 2082 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), 2083 BPF_MOV64_IMM(BPF_REG_4, 0x7fffffff), 2084 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 2085 BPF_FUNC_skb_load_bytes), 2086 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), 2087 BPF_EXIT_INSN(), 2088 }, 2089 .result = REJECT, 2090 .errstr = "invalid stack type R3 off=-1 access_size=2147483647", 2091 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 2092 }, 2093 { 2094 "raw_stack: skb_load_bytes, invalid access 5", 2095 .insns = { 2096 BPF_MOV64_IMM(BPF_REG_2, 4), 2097 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), 2098 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512), 2099 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), 2100 BPF_MOV64_IMM(BPF_REG_4, 0x7fffffff), 2101 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 2102 BPF_FUNC_skb_load_bytes), 2103 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), 2104 BPF_EXIT_INSN(), 2105 }, 2106 .result = REJECT, 2107 .errstr = "invalid stack type R3 off=-512 access_size=2147483647", 2108 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 2109 }, 2110 { 2111 "raw_stack: skb_load_bytes, invalid access 6", 2112 .insns = { 2113 BPF_MOV64_IMM(BPF_REG_2, 4), 2114 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), 2115 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512), 2116 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), 2117 BPF_MOV64_IMM(BPF_REG_4, 0), 2118 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 2119 BPF_FUNC_skb_load_bytes), 2120 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), 2121 BPF_EXIT_INSN(), 2122 }, 2123 .result = REJECT, 2124 .errstr = "invalid stack type R3 off=-512 access_size=0", 2125 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 2126 }, 2127 { 2128 "raw_stack: skb_load_bytes, large access", 2129 .insns = { 2130 BPF_MOV64_IMM(BPF_REG_2, 4), 2131 BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), 2132 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512), 2133 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), 2134 BPF_MOV64_IMM(BPF_REG_4, 512), 2135 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 2136 BPF_FUNC_skb_load_bytes), 2137 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), 2138 BPF_EXIT_INSN(), 2139 }, 2140 .result = ACCEPT, 2141 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 2142 }, 2143 { 2144 "direct packet access: test1", 2145 .insns = { 2146 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 2147 offsetof(struct __sk_buff, data)), 2148 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, 2149 offsetof(struct __sk_buff, data_end)), 2150 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), 2151 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), 2152 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), 2153 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), 2154 BPF_MOV64_IMM(BPF_REG_0, 0), 2155 BPF_EXIT_INSN(), 2156 }, 2157 .result = ACCEPT, 2158 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 2159 }, 2160 { 2161 "direct packet access: test2", 2162 .insns = { 2163 BPF_MOV64_IMM(BPF_REG_0, 1), 2164 BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1, 2165 offsetof(struct __sk_buff, data_end)), 2166 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, 2167 offsetof(struct __sk_buff, data)), 2168 BPF_MOV64_REG(BPF_REG_5, BPF_REG_3), 2169 BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 14), 2170 BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_4, 15), 2171 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_3, 7), 2172 BPF_LDX_MEM(BPF_B, BPF_REG_4, BPF_REG_3, 12), 2173 BPF_ALU64_IMM(BPF_MUL, BPF_REG_4, 14), 2174 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, 2175 offsetof(struct __sk_buff, data)), 2176 BPF_ALU64_REG(BPF_ADD, BPF_REG_3, BPF_REG_4), 2177 BPF_MOV64_REG(BPF_REG_2, BPF_REG_1), 2178 BPF_ALU64_IMM(BPF_LSH, BPF_REG_2, 48), 2179 BPF_ALU64_IMM(BPF_RSH, BPF_REG_2, 48), 2180 BPF_ALU64_REG(BPF_ADD, BPF_REG_3, BPF_REG_2), 2181 BPF_MOV64_REG(BPF_REG_2, BPF_REG_3), 2182 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 8), 2183 BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, 2184 offsetof(struct __sk_buff, data_end)), 2185 BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 1), 2186 BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_3, 4), 2187 BPF_MOV64_IMM(BPF_REG_0, 0), 2188 BPF_EXIT_INSN(), 2189 }, 2190 .result = ACCEPT, 2191 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 2192 }, 2193 { 2194 "direct packet access: test3", 2195 .insns = { 2196 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 2197 offsetof(struct __sk_buff, data)), 2198 BPF_MOV64_IMM(BPF_REG_0, 0), 2199 BPF_EXIT_INSN(), 2200 }, 2201 .errstr = "invalid bpf_context access off=76", 2202 .result = REJECT, 2203 .prog_type = BPF_PROG_TYPE_SOCKET_FILTER, 2204 }, 2205 { 2206 "direct packet access: test4 (write)", 2207 .insns = { 2208 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 2209 offsetof(struct __sk_buff, data)), 2210 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, 2211 offsetof(struct __sk_buff, data_end)), 2212 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), 2213 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), 2214 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), 2215 BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), 2216 BPF_MOV64_IMM(BPF_REG_0, 0), 2217 BPF_EXIT_INSN(), 2218 }, 2219 .result = ACCEPT, 2220 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 2221 }, 2222 { 2223 "direct packet access: test5 (pkt_end >= reg, good access)", 2224 .insns = { 2225 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 2226 offsetof(struct __sk_buff, data)), 2227 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, 2228 offsetof(struct __sk_buff, data_end)), 2229 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), 2230 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), 2231 BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 2), 2232 BPF_MOV64_IMM(BPF_REG_0, 1), 2233 BPF_EXIT_INSN(), 2234 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), 2235 BPF_MOV64_IMM(BPF_REG_0, 0), 2236 BPF_EXIT_INSN(), 2237 }, 2238 .result = ACCEPT, 2239 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 2240 }, 2241 { 2242 "direct packet access: test6 (pkt_end >= reg, bad access)", 2243 .insns = { 2244 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 2245 offsetof(struct __sk_buff, data)), 2246 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, 2247 offsetof(struct __sk_buff, data_end)), 2248 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), 2249 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), 2250 BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 3), 2251 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), 2252 BPF_MOV64_IMM(BPF_REG_0, 1), 2253 BPF_EXIT_INSN(), 2254 BPF_MOV64_IMM(BPF_REG_0, 0), 2255 BPF_EXIT_INSN(), 2256 }, 2257 .errstr = "invalid access to packet", 2258 .result = REJECT, 2259 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 2260 }, 2261 { 2262 "direct packet access: test7 (pkt_end >= reg, both accesses)", 2263 .insns = { 2264 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 2265 offsetof(struct __sk_buff, data)), 2266 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, 2267 offsetof(struct __sk_buff, data_end)), 2268 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), 2269 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), 2270 BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 3), 2271 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), 2272 BPF_MOV64_IMM(BPF_REG_0, 1), 2273 BPF_EXIT_INSN(), 2274 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), 2275 BPF_MOV64_IMM(BPF_REG_0, 0), 2276 BPF_EXIT_INSN(), 2277 }, 2278 .errstr = "invalid access to packet", 2279 .result = REJECT, 2280 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 2281 }, 2282 { 2283 "direct packet access: test8 (double test, variant 1)", 2284 .insns = { 2285 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 2286 offsetof(struct __sk_buff, data)), 2287 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, 2288 offsetof(struct __sk_buff, data_end)), 2289 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), 2290 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), 2291 BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 4), 2292 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), 2293 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), 2294 BPF_MOV64_IMM(BPF_REG_0, 1), 2295 BPF_EXIT_INSN(), 2296 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), 2297 BPF_MOV64_IMM(BPF_REG_0, 0), 2298 BPF_EXIT_INSN(), 2299 }, 2300 .result = ACCEPT, 2301 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 2302 }, 2303 { 2304 "direct packet access: test9 (double test, variant 2)", 2305 .insns = { 2306 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 2307 offsetof(struct __sk_buff, data)), 2308 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, 2309 offsetof(struct __sk_buff, data_end)), 2310 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), 2311 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), 2312 BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 2), 2313 BPF_MOV64_IMM(BPF_REG_0, 1), 2314 BPF_EXIT_INSN(), 2315 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), 2316 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), 2317 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), 2318 BPF_MOV64_IMM(BPF_REG_0, 0), 2319 BPF_EXIT_INSN(), 2320 }, 2321 .result = ACCEPT, 2322 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 2323 }, 2324 { 2325 "direct packet access: test10 (write invalid)", 2326 .insns = { 2327 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 2328 offsetof(struct __sk_buff, data)), 2329 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, 2330 offsetof(struct __sk_buff, data_end)), 2331 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), 2332 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), 2333 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 2), 2334 BPF_MOV64_IMM(BPF_REG_0, 0), 2335 BPF_EXIT_INSN(), 2336 BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), 2337 BPF_MOV64_IMM(BPF_REG_0, 0), 2338 BPF_EXIT_INSN(), 2339 }, 2340 .errstr = "invalid access to packet", 2341 .result = REJECT, 2342 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 2343 }, 2344 { 2345 "direct packet access: test11 (shift, good access)", 2346 .insns = { 2347 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 2348 offsetof(struct __sk_buff, data)), 2349 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, 2350 offsetof(struct __sk_buff, data_end)), 2351 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), 2352 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 22), 2353 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 8), 2354 BPF_MOV64_IMM(BPF_REG_3, 144), 2355 BPF_MOV64_REG(BPF_REG_5, BPF_REG_3), 2356 BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 23), 2357 BPF_ALU64_IMM(BPF_RSH, BPF_REG_5, 3), 2358 BPF_MOV64_REG(BPF_REG_6, BPF_REG_2), 2359 BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5), 2360 BPF_MOV64_IMM(BPF_REG_0, 1), 2361 BPF_EXIT_INSN(), 2362 BPF_MOV64_IMM(BPF_REG_0, 0), 2363 BPF_EXIT_INSN(), 2364 }, 2365 .result = ACCEPT, 2366 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 2367 }, 2368 { 2369 "direct packet access: test12 (and, good access)", 2370 .insns = { 2371 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 2372 offsetof(struct __sk_buff, data)), 2373 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, 2374 offsetof(struct __sk_buff, data_end)), 2375 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), 2376 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 22), 2377 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 8), 2378 BPF_MOV64_IMM(BPF_REG_3, 144), 2379 BPF_MOV64_REG(BPF_REG_5, BPF_REG_3), 2380 BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 23), 2381 BPF_ALU64_IMM(BPF_AND, BPF_REG_5, 15), 2382 BPF_MOV64_REG(BPF_REG_6, BPF_REG_2), 2383 BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5), 2384 BPF_MOV64_IMM(BPF_REG_0, 1), 2385 BPF_EXIT_INSN(), 2386 BPF_MOV64_IMM(BPF_REG_0, 0), 2387 BPF_EXIT_INSN(), 2388 }, 2389 .result = ACCEPT, 2390 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 2391 }, 2392 { 2393 "direct packet access: test13 (branches, good access)", 2394 .insns = { 2395 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 2396 offsetof(struct __sk_buff, data)), 2397 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, 2398 offsetof(struct __sk_buff, data_end)), 2399 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), 2400 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 22), 2401 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 13), 2402 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, 2403 offsetof(struct __sk_buff, mark)), 2404 BPF_MOV64_IMM(BPF_REG_4, 1), 2405 BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_4, 2), 2406 BPF_MOV64_IMM(BPF_REG_3, 14), 2407 BPF_JMP_IMM(BPF_JA, 0, 0, 1), 2408 BPF_MOV64_IMM(BPF_REG_3, 24), 2409 BPF_MOV64_REG(BPF_REG_5, BPF_REG_3), 2410 BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 23), 2411 BPF_ALU64_IMM(BPF_AND, BPF_REG_5, 15), 2412 BPF_MOV64_REG(BPF_REG_6, BPF_REG_2), 2413 BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5), 2414 BPF_MOV64_IMM(BPF_REG_0, 1), 2415 BPF_EXIT_INSN(), 2416 BPF_MOV64_IMM(BPF_REG_0, 0), 2417 BPF_EXIT_INSN(), 2418 }, 2419 .result = ACCEPT, 2420 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 2421 }, 2422 { 2423 "direct packet access: test14 (pkt_ptr += 0, CONST_IMM, good access)", 2424 .insns = { 2425 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 2426 offsetof(struct __sk_buff, data)), 2427 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, 2428 offsetof(struct __sk_buff, data_end)), 2429 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), 2430 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 22), 2431 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 7), 2432 BPF_MOV64_IMM(BPF_REG_5, 12), 2433 BPF_ALU64_IMM(BPF_RSH, BPF_REG_5, 4), 2434 BPF_MOV64_REG(BPF_REG_6, BPF_REG_2), 2435 BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5), 2436 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_6, 0), 2437 BPF_MOV64_IMM(BPF_REG_0, 1), 2438 BPF_EXIT_INSN(), 2439 BPF_MOV64_IMM(BPF_REG_0, 0), 2440 BPF_EXIT_INSN(), 2441 }, 2442 .result = ACCEPT, 2443 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 2444 }, 2445 { 2446 "direct packet access: test15 (spill with xadd)", 2447 .insns = { 2448 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 2449 offsetof(struct __sk_buff, data)), 2450 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, 2451 offsetof(struct __sk_buff, data_end)), 2452 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), 2453 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), 2454 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 8), 2455 BPF_MOV64_IMM(BPF_REG_5, 4096), 2456 BPF_MOV64_REG(BPF_REG_4, BPF_REG_10), 2457 BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8), 2458 BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0), 2459 BPF_STX_XADD(BPF_DW, BPF_REG_4, BPF_REG_5, 0), 2460 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_4, 0), 2461 BPF_STX_MEM(BPF_W, BPF_REG_2, BPF_REG_5, 0), 2462 BPF_MOV64_IMM(BPF_REG_0, 0), 2463 BPF_EXIT_INSN(), 2464 }, 2465 .errstr = "R2 invalid mem access 'inv'", 2466 .result = REJECT, 2467 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 2468 }, 2469 { 2470 "helper access to packet: test1, valid packet_ptr range", 2471 .insns = { 2472 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 2473 offsetof(struct xdp_md, data)), 2474 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, 2475 offsetof(struct xdp_md, data_end)), 2476 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), 2477 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), 2478 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 5), 2479 BPF_LD_MAP_FD(BPF_REG_1, 0), 2480 BPF_MOV64_REG(BPF_REG_3, BPF_REG_2), 2481 BPF_MOV64_IMM(BPF_REG_4, 0), 2482 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 2483 BPF_FUNC_map_update_elem), 2484 BPF_MOV64_IMM(BPF_REG_0, 0), 2485 BPF_EXIT_INSN(), 2486 }, 2487 .fixup_map1 = { 5 }, 2488 .result_unpriv = ACCEPT, 2489 .result = ACCEPT, 2490 .prog_type = BPF_PROG_TYPE_XDP, 2491 }, 2492 { 2493 "helper access to packet: test2, unchecked packet_ptr", 2494 .insns = { 2495 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 2496 offsetof(struct xdp_md, data)), 2497 BPF_LD_MAP_FD(BPF_REG_1, 0), 2498 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 2499 BPF_FUNC_map_lookup_elem), 2500 BPF_MOV64_IMM(BPF_REG_0, 0), 2501 BPF_EXIT_INSN(), 2502 }, 2503 .fixup_map1 = { 1 }, 2504 .result = REJECT, 2505 .errstr = "invalid access to packet", 2506 .prog_type = BPF_PROG_TYPE_XDP, 2507 }, 2508 { 2509 "helper access to packet: test3, variable add", 2510 .insns = { 2511 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 2512 offsetof(struct xdp_md, data)), 2513 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, 2514 offsetof(struct xdp_md, data_end)), 2515 BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), 2516 BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8), 2517 BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 10), 2518 BPF_LDX_MEM(BPF_B, BPF_REG_5, BPF_REG_2, 0), 2519 BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), 2520 BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_5), 2521 BPF_MOV64_REG(BPF_REG_5, BPF_REG_4), 2522 BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 8), 2523 BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_3, 4), 2524 BPF_LD_MAP_FD(BPF_REG_1, 0), 2525 BPF_MOV64_REG(BPF_REG_2, BPF_REG_4), 2526 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 2527 BPF_FUNC_map_lookup_elem), 2528 BPF_MOV64_IMM(BPF_REG_0, 0), 2529 BPF_EXIT_INSN(), 2530 }, 2531 .fixup_map1 = { 11 }, 2532 .result = ACCEPT, 2533 .prog_type = BPF_PROG_TYPE_XDP, 2534 }, 2535 { 2536 "helper access to packet: test4, packet_ptr with bad range", 2537 .insns = { 2538 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 2539 offsetof(struct xdp_md, data)), 2540 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, 2541 offsetof(struct xdp_md, data_end)), 2542 BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), 2543 BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4), 2544 BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 2), 2545 BPF_MOV64_IMM(BPF_REG_0, 0), 2546 BPF_EXIT_INSN(), 2547 BPF_LD_MAP_FD(BPF_REG_1, 0), 2548 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 2549 BPF_FUNC_map_lookup_elem), 2550 BPF_MOV64_IMM(BPF_REG_0, 0), 2551 BPF_EXIT_INSN(), 2552 }, 2553 .fixup_map1 = { 7 }, 2554 .result = REJECT, 2555 .errstr = "invalid access to packet", 2556 .prog_type = BPF_PROG_TYPE_XDP, 2557 }, 2558 { 2559 "helper access to packet: test5, packet_ptr with too short range", 2560 .insns = { 2561 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 2562 offsetof(struct xdp_md, data)), 2563 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, 2564 offsetof(struct xdp_md, data_end)), 2565 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), 2566 BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), 2567 BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 7), 2568 BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 3), 2569 BPF_LD_MAP_FD(BPF_REG_1, 0), 2570 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 2571 BPF_FUNC_map_lookup_elem), 2572 BPF_MOV64_IMM(BPF_REG_0, 0), 2573 BPF_EXIT_INSN(), 2574 }, 2575 .fixup_map1 = { 6 }, 2576 .result = REJECT, 2577 .errstr = "invalid access to packet", 2578 .prog_type = BPF_PROG_TYPE_XDP, 2579 }, 2580 { 2581 "helper access to packet: test6, cls valid packet_ptr range", 2582 .insns = { 2583 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 2584 offsetof(struct __sk_buff, data)), 2585 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, 2586 offsetof(struct __sk_buff, data_end)), 2587 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), 2588 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), 2589 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 5), 2590 BPF_LD_MAP_FD(BPF_REG_1, 0), 2591 BPF_MOV64_REG(BPF_REG_3, BPF_REG_2), 2592 BPF_MOV64_IMM(BPF_REG_4, 0), 2593 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 2594 BPF_FUNC_map_update_elem), 2595 BPF_MOV64_IMM(BPF_REG_0, 0), 2596 BPF_EXIT_INSN(), 2597 }, 2598 .fixup_map1 = { 5 }, 2599 .result = ACCEPT, 2600 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 2601 }, 2602 { 2603 "helper access to packet: test7, cls unchecked packet_ptr", 2604 .insns = { 2605 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 2606 offsetof(struct __sk_buff, data)), 2607 BPF_LD_MAP_FD(BPF_REG_1, 0), 2608 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 2609 BPF_FUNC_map_lookup_elem), 2610 BPF_MOV64_IMM(BPF_REG_0, 0), 2611 BPF_EXIT_INSN(), 2612 }, 2613 .fixup_map1 = { 1 }, 2614 .result = REJECT, 2615 .errstr = "invalid access to packet", 2616 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 2617 }, 2618 { 2619 "helper access to packet: test8, cls variable add", 2620 .insns = { 2621 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 2622 offsetof(struct __sk_buff, data)), 2623 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, 2624 offsetof(struct __sk_buff, data_end)), 2625 BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), 2626 BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8), 2627 BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 10), 2628 BPF_LDX_MEM(BPF_B, BPF_REG_5, BPF_REG_2, 0), 2629 BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), 2630 BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_5), 2631 BPF_MOV64_REG(BPF_REG_5, BPF_REG_4), 2632 BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 8), 2633 BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_3, 4), 2634 BPF_LD_MAP_FD(BPF_REG_1, 0), 2635 BPF_MOV64_REG(BPF_REG_2, BPF_REG_4), 2636 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 2637 BPF_FUNC_map_lookup_elem), 2638 BPF_MOV64_IMM(BPF_REG_0, 0), 2639 BPF_EXIT_INSN(), 2640 }, 2641 .fixup_map1 = { 11 }, 2642 .result = ACCEPT, 2643 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 2644 }, 2645 { 2646 "helper access to packet: test9, cls packet_ptr with bad range", 2647 .insns = { 2648 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 2649 offsetof(struct __sk_buff, data)), 2650 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, 2651 offsetof(struct __sk_buff, data_end)), 2652 BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), 2653 BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4), 2654 BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 2), 2655 BPF_MOV64_IMM(BPF_REG_0, 0), 2656 BPF_EXIT_INSN(), 2657 BPF_LD_MAP_FD(BPF_REG_1, 0), 2658 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 2659 BPF_FUNC_map_lookup_elem), 2660 BPF_MOV64_IMM(BPF_REG_0, 0), 2661 BPF_EXIT_INSN(), 2662 }, 2663 .fixup_map1 = { 7 }, 2664 .result = REJECT, 2665 .errstr = "invalid access to packet", 2666 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 2667 }, 2668 { 2669 "helper access to packet: test10, cls packet_ptr with too short range", 2670 .insns = { 2671 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 2672 offsetof(struct __sk_buff, data)), 2673 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, 2674 offsetof(struct __sk_buff, data_end)), 2675 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), 2676 BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), 2677 BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 7), 2678 BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 3), 2679 BPF_LD_MAP_FD(BPF_REG_1, 0), 2680 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 2681 BPF_FUNC_map_lookup_elem), 2682 BPF_MOV64_IMM(BPF_REG_0, 0), 2683 BPF_EXIT_INSN(), 2684 }, 2685 .fixup_map1 = { 6 }, 2686 .result = REJECT, 2687 .errstr = "invalid access to packet", 2688 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 2689 }, 2690 { 2691 "helper access to packet: test11, cls unsuitable helper 1", 2692 .insns = { 2693 BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, 2694 offsetof(struct __sk_buff, data)), 2695 BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, 2696 offsetof(struct __sk_buff, data_end)), 2697 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), 2698 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), 2699 BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 7), 2700 BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_7, 4), 2701 BPF_MOV64_IMM(BPF_REG_2, 0), 2702 BPF_MOV64_IMM(BPF_REG_4, 42), 2703 BPF_MOV64_IMM(BPF_REG_5, 0), 2704 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 2705 BPF_FUNC_skb_store_bytes), 2706 BPF_MOV64_IMM(BPF_REG_0, 0), 2707 BPF_EXIT_INSN(), 2708 }, 2709 .result = REJECT, 2710 .errstr = "helper access to the packet", 2711 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 2712 }, 2713 { 2714 "helper access to packet: test12, cls unsuitable helper 2", 2715 .insns = { 2716 BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, 2717 offsetof(struct __sk_buff, data)), 2718 BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, 2719 offsetof(struct __sk_buff, data_end)), 2720 BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), 2721 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 8), 2722 BPF_JMP_REG(BPF_JGT, BPF_REG_6, BPF_REG_7, 3), 2723 BPF_MOV64_IMM(BPF_REG_2, 0), 2724 BPF_MOV64_IMM(BPF_REG_4, 4), 2725 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 2726 BPF_FUNC_skb_load_bytes), 2727 BPF_MOV64_IMM(BPF_REG_0, 0), 2728 BPF_EXIT_INSN(), 2729 }, 2730 .result = REJECT, 2731 .errstr = "helper access to the packet", 2732 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 2733 }, 2734 { 2735 "helper access to packet: test13, cls helper ok", 2736 .insns = { 2737 BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, 2738 offsetof(struct __sk_buff, data)), 2739 BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, 2740 offsetof(struct __sk_buff, data_end)), 2741 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), 2742 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), 2743 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), 2744 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), 2745 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), 2746 BPF_MOV64_IMM(BPF_REG_2, 4), 2747 BPF_MOV64_IMM(BPF_REG_3, 0), 2748 BPF_MOV64_IMM(BPF_REG_4, 0), 2749 BPF_MOV64_IMM(BPF_REG_5, 0), 2750 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 2751 BPF_FUNC_csum_diff), 2752 BPF_MOV64_IMM(BPF_REG_0, 0), 2753 BPF_EXIT_INSN(), 2754 }, 2755 .result = ACCEPT, 2756 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 2757 }, 2758 { 2759 "helper access to packet: test14, cls helper fail sub", 2760 .insns = { 2761 BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, 2762 offsetof(struct __sk_buff, data)), 2763 BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, 2764 offsetof(struct __sk_buff, data_end)), 2765 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), 2766 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), 2767 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), 2768 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), 2769 BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 4), 2770 BPF_MOV64_IMM(BPF_REG_2, 4), 2771 BPF_MOV64_IMM(BPF_REG_3, 0), 2772 BPF_MOV64_IMM(BPF_REG_4, 0), 2773 BPF_MOV64_IMM(BPF_REG_5, 0), 2774 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 2775 BPF_FUNC_csum_diff), 2776 BPF_MOV64_IMM(BPF_REG_0, 0), 2777 BPF_EXIT_INSN(), 2778 }, 2779 .result = REJECT, 2780 .errstr = "type=inv expected=fp", 2781 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 2782 }, 2783 { 2784 "helper access to packet: test15, cls helper fail range 1", 2785 .insns = { 2786 BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, 2787 offsetof(struct __sk_buff, data)), 2788 BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, 2789 offsetof(struct __sk_buff, data_end)), 2790 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), 2791 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), 2792 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), 2793 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), 2794 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), 2795 BPF_MOV64_IMM(BPF_REG_2, 8), 2796 BPF_MOV64_IMM(BPF_REG_3, 0), 2797 BPF_MOV64_IMM(BPF_REG_4, 0), 2798 BPF_MOV64_IMM(BPF_REG_5, 0), 2799 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 2800 BPF_FUNC_csum_diff), 2801 BPF_MOV64_IMM(BPF_REG_0, 0), 2802 BPF_EXIT_INSN(), 2803 }, 2804 .result = REJECT, 2805 .errstr = "invalid access to packet", 2806 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 2807 }, 2808 { 2809 "helper access to packet: test16, cls helper fail range 2", 2810 .insns = { 2811 BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, 2812 offsetof(struct __sk_buff, data)), 2813 BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, 2814 offsetof(struct __sk_buff, data_end)), 2815 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), 2816 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), 2817 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), 2818 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), 2819 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), 2820 BPF_MOV64_IMM(BPF_REG_2, -9), 2821 BPF_MOV64_IMM(BPF_REG_3, 0), 2822 BPF_MOV64_IMM(BPF_REG_4, 0), 2823 BPF_MOV64_IMM(BPF_REG_5, 0), 2824 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 2825 BPF_FUNC_csum_diff), 2826 BPF_MOV64_IMM(BPF_REG_0, 0), 2827 BPF_EXIT_INSN(), 2828 }, 2829 .result = REJECT, 2830 .errstr = "invalid access to packet", 2831 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 2832 }, 2833 { 2834 "helper access to packet: test17, cls helper fail range 3", 2835 .insns = { 2836 BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, 2837 offsetof(struct __sk_buff, data)), 2838 BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, 2839 offsetof(struct __sk_buff, data_end)), 2840 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), 2841 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), 2842 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), 2843 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), 2844 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), 2845 BPF_MOV64_IMM(BPF_REG_2, ~0), 2846 BPF_MOV64_IMM(BPF_REG_3, 0), 2847 BPF_MOV64_IMM(BPF_REG_4, 0), 2848 BPF_MOV64_IMM(BPF_REG_5, 0), 2849 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 2850 BPF_FUNC_csum_diff), 2851 BPF_MOV64_IMM(BPF_REG_0, 0), 2852 BPF_EXIT_INSN(), 2853 }, 2854 .result = REJECT, 2855 .errstr = "invalid access to packet", 2856 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 2857 }, 2858 { 2859 "helper access to packet: test18, cls helper fail range zero", 2860 .insns = { 2861 BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, 2862 offsetof(struct __sk_buff, data)), 2863 BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, 2864 offsetof(struct __sk_buff, data_end)), 2865 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), 2866 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), 2867 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), 2868 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), 2869 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), 2870 BPF_MOV64_IMM(BPF_REG_2, 0), 2871 BPF_MOV64_IMM(BPF_REG_3, 0), 2872 BPF_MOV64_IMM(BPF_REG_4, 0), 2873 BPF_MOV64_IMM(BPF_REG_5, 0), 2874 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 2875 BPF_FUNC_csum_diff), 2876 BPF_MOV64_IMM(BPF_REG_0, 0), 2877 BPF_EXIT_INSN(), 2878 }, 2879 .result = REJECT, 2880 .errstr = "invalid access to packet", 2881 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 2882 }, 2883 { 2884 "helper access to packet: test19, pkt end as input", 2885 .insns = { 2886 BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, 2887 offsetof(struct __sk_buff, data)), 2888 BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, 2889 offsetof(struct __sk_buff, data_end)), 2890 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), 2891 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), 2892 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), 2893 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), 2894 BPF_MOV64_REG(BPF_REG_1, BPF_REG_7), 2895 BPF_MOV64_IMM(BPF_REG_2, 4), 2896 BPF_MOV64_IMM(BPF_REG_3, 0), 2897 BPF_MOV64_IMM(BPF_REG_4, 0), 2898 BPF_MOV64_IMM(BPF_REG_5, 0), 2899 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 2900 BPF_FUNC_csum_diff), 2901 BPF_MOV64_IMM(BPF_REG_0, 0), 2902 BPF_EXIT_INSN(), 2903 }, 2904 .result = REJECT, 2905 .errstr = "R1 type=pkt_end expected=fp", 2906 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 2907 }, 2908 { 2909 "helper access to packet: test20, wrong reg", 2910 .insns = { 2911 BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, 2912 offsetof(struct __sk_buff, data)), 2913 BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, 2914 offsetof(struct __sk_buff, data_end)), 2915 BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), 2916 BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), 2917 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), 2918 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), 2919 BPF_MOV64_IMM(BPF_REG_2, 4), 2920 BPF_MOV64_IMM(BPF_REG_3, 0), 2921 BPF_MOV64_IMM(BPF_REG_4, 0), 2922 BPF_MOV64_IMM(BPF_REG_5, 0), 2923 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 2924 BPF_FUNC_csum_diff), 2925 BPF_MOV64_IMM(BPF_REG_0, 0), 2926 BPF_EXIT_INSN(), 2927 }, 2928 .result = REJECT, 2929 .errstr = "invalid access to packet", 2930 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 2931 }, 2932 { 2933 "valid map access into an array with a constant", 2934 .insns = { 2935 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), 2936 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 2937 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 2938 BPF_LD_MAP_FD(BPF_REG_1, 0), 2939 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 2940 BPF_FUNC_map_lookup_elem), 2941 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), 2942 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 2943 offsetof(struct test_val, foo)), 2944 BPF_EXIT_INSN(), 2945 }, 2946 .fixup_map2 = { 3 }, 2947 .errstr_unpriv = "R0 leaks addr", 2948 .result_unpriv = REJECT, 2949 .result = ACCEPT, 2950 }, 2951 { 2952 "valid map access into an array with a register", 2953 .insns = { 2954 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), 2955 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 2956 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 2957 BPF_LD_MAP_FD(BPF_REG_1, 0), 2958 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 2959 BPF_FUNC_map_lookup_elem), 2960 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), 2961 BPF_MOV64_IMM(BPF_REG_1, 4), 2962 BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), 2963 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), 2964 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 2965 offsetof(struct test_val, foo)), 2966 BPF_EXIT_INSN(), 2967 }, 2968 .fixup_map2 = { 3 }, 2969 .errstr_unpriv = "R0 pointer arithmetic prohibited", 2970 .result_unpriv = REJECT, 2971 .result = ACCEPT, 2972 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, 2973 }, 2974 { 2975 "valid map access into an array with a variable", 2976 .insns = { 2977 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), 2978 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 2979 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 2980 BPF_LD_MAP_FD(BPF_REG_1, 0), 2981 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 2982 BPF_FUNC_map_lookup_elem), 2983 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), 2984 BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), 2985 BPF_JMP_IMM(BPF_JGE, BPF_REG_1, MAX_ENTRIES, 3), 2986 BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), 2987 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), 2988 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 2989 offsetof(struct test_val, foo)), 2990 BPF_EXIT_INSN(), 2991 }, 2992 .fixup_map2 = { 3 }, 2993 .errstr_unpriv = "R0 pointer arithmetic prohibited", 2994 .result_unpriv = REJECT, 2995 .result = ACCEPT, 2996 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, 2997 }, 2998 { 2999 "valid map access into an array with a signed variable", 3000 .insns = { 3001 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), 3002 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 3003 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 3004 BPF_LD_MAP_FD(BPF_REG_1, 0), 3005 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 3006 BPF_FUNC_map_lookup_elem), 3007 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9), 3008 BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), 3009 BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 0xffffffff, 1), 3010 BPF_MOV32_IMM(BPF_REG_1, 0), 3011 BPF_MOV32_IMM(BPF_REG_2, MAX_ENTRIES), 3012 BPF_JMP_REG(BPF_JSGT, BPF_REG_2, BPF_REG_1, 1), 3013 BPF_MOV32_IMM(BPF_REG_1, 0), 3014 BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 2), 3015 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), 3016 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 3017 offsetof(struct test_val, foo)), 3018 BPF_EXIT_INSN(), 3019 }, 3020 .fixup_map2 = { 3 }, 3021 .errstr_unpriv = "R0 pointer arithmetic prohibited", 3022 .result_unpriv = REJECT, 3023 .result = ACCEPT, 3024 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, 3025 }, 3026 { 3027 "invalid map access into an array with a constant", 3028 .insns = { 3029 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), 3030 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 3031 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 3032 BPF_LD_MAP_FD(BPF_REG_1, 0), 3033 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 3034 BPF_FUNC_map_lookup_elem), 3035 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), 3036 BPF_ST_MEM(BPF_DW, BPF_REG_0, (MAX_ENTRIES + 1) << 2, 3037 offsetof(struct test_val, foo)), 3038 BPF_EXIT_INSN(), 3039 }, 3040 .fixup_map2 = { 3 }, 3041 .errstr = "invalid access to map value, value_size=48 off=48 size=8", 3042 .result = REJECT, 3043 }, 3044 { 3045 "invalid map access into an array with a register", 3046 .insns = { 3047 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), 3048 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 3049 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 3050 BPF_LD_MAP_FD(BPF_REG_1, 0), 3051 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 3052 BPF_FUNC_map_lookup_elem), 3053 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), 3054 BPF_MOV64_IMM(BPF_REG_1, MAX_ENTRIES + 1), 3055 BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), 3056 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), 3057 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 3058 offsetof(struct test_val, foo)), 3059 BPF_EXIT_INSN(), 3060 }, 3061 .fixup_map2 = { 3 }, 3062 .errstr_unpriv = "R0 pointer arithmetic prohibited", 3063 .errstr = "R0 min value is outside of the array range", 3064 .result_unpriv = REJECT, 3065 .result = REJECT, 3066 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, 3067 }, 3068 { 3069 "invalid map access into an array with a variable", 3070 .insns = { 3071 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), 3072 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 3073 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 3074 BPF_LD_MAP_FD(BPF_REG_1, 0), 3075 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 3076 BPF_FUNC_map_lookup_elem), 3077 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), 3078 BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), 3079 BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), 3080 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), 3081 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 3082 offsetof(struct test_val, foo)), 3083 BPF_EXIT_INSN(), 3084 }, 3085 .fixup_map2 = { 3 }, 3086 .errstr_unpriv = "R0 pointer arithmetic prohibited", 3087 .errstr = "R0 min value is negative, either use unsigned index or do a if (index >=0) check.", 3088 .result_unpriv = REJECT, 3089 .result = REJECT, 3090 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, 3091 }, 3092 { 3093 "invalid map access into an array with no floor check", 3094 .insns = { 3095 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), 3096 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 3097 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 3098 BPF_LD_MAP_FD(BPF_REG_1, 0), 3099 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 3100 BPF_FUNC_map_lookup_elem), 3101 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), 3102 BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), 3103 BPF_MOV32_IMM(BPF_REG_2, MAX_ENTRIES), 3104 BPF_JMP_REG(BPF_JSGT, BPF_REG_2, BPF_REG_1, 1), 3105 BPF_MOV32_IMM(BPF_REG_1, 0), 3106 BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 2), 3107 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), 3108 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 3109 offsetof(struct test_val, foo)), 3110 BPF_EXIT_INSN(), 3111 }, 3112 .fixup_map2 = { 3 }, 3113 .errstr_unpriv = "R0 pointer arithmetic prohibited", 3114 .errstr = "R0 min value is negative, either use unsigned index or do a if (index >=0) check.", 3115 .result_unpriv = REJECT, 3116 .result = REJECT, 3117 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, 3118 }, 3119 { 3120 "invalid map access into an array with a invalid max check", 3121 .insns = { 3122 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), 3123 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 3124 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 3125 BPF_LD_MAP_FD(BPF_REG_1, 0), 3126 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 3127 BPF_FUNC_map_lookup_elem), 3128 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), 3129 BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), 3130 BPF_MOV32_IMM(BPF_REG_2, MAX_ENTRIES + 1), 3131 BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 1), 3132 BPF_MOV32_IMM(BPF_REG_1, 0), 3133 BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 2), 3134 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), 3135 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 3136 offsetof(struct test_val, foo)), 3137 BPF_EXIT_INSN(), 3138 }, 3139 .fixup_map2 = { 3 }, 3140 .errstr_unpriv = "R0 pointer arithmetic prohibited", 3141 .errstr = "invalid access to map value, value_size=48 off=44 size=8", 3142 .result_unpriv = REJECT, 3143 .result = REJECT, 3144 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, 3145 }, 3146 { 3147 "invalid map access into an array with a invalid max check", 3148 .insns = { 3149 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), 3150 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 3151 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 3152 BPF_LD_MAP_FD(BPF_REG_1, 0), 3153 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 3154 BPF_FUNC_map_lookup_elem), 3155 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10), 3156 BPF_MOV64_REG(BPF_REG_8, BPF_REG_0), 3157 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), 3158 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 3159 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 3160 BPF_LD_MAP_FD(BPF_REG_1, 0), 3161 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 3162 BPF_FUNC_map_lookup_elem), 3163 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), 3164 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_8), 3165 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, 3166 offsetof(struct test_val, foo)), 3167 BPF_EXIT_INSN(), 3168 }, 3169 .fixup_map2 = { 3, 11 }, 3170 .errstr_unpriv = "R0 pointer arithmetic prohibited", 3171 .errstr = "R0 min value is negative, either use unsigned index or do a if (index >=0) check.", 3172 .result_unpriv = REJECT, 3173 .result = REJECT, 3174 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, 3175 }, 3176 { 3177 "multiple registers share map_lookup_elem result", 3178 .insns = { 3179 BPF_MOV64_IMM(BPF_REG_1, 10), 3180 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), 3181 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 3182 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 3183 BPF_LD_MAP_FD(BPF_REG_1, 0), 3184 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 3185 BPF_FUNC_map_lookup_elem), 3186 BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), 3187 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), 3188 BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0), 3189 BPF_EXIT_INSN(), 3190 }, 3191 .fixup_map1 = { 4 }, 3192 .result = ACCEPT, 3193 .prog_type = BPF_PROG_TYPE_SCHED_CLS 3194 }, 3195 { 3196 "invalid memory access with multiple map_lookup_elem calls", 3197 .insns = { 3198 BPF_MOV64_IMM(BPF_REG_1, 10), 3199 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), 3200 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 3201 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 3202 BPF_LD_MAP_FD(BPF_REG_1, 0), 3203 BPF_MOV64_REG(BPF_REG_8, BPF_REG_1), 3204 BPF_MOV64_REG(BPF_REG_7, BPF_REG_2), 3205 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 3206 BPF_FUNC_map_lookup_elem), 3207 BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), 3208 BPF_MOV64_REG(BPF_REG_1, BPF_REG_8), 3209 BPF_MOV64_REG(BPF_REG_2, BPF_REG_7), 3210 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 3211 BPF_FUNC_map_lookup_elem), 3212 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), 3213 BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0), 3214 BPF_EXIT_INSN(), 3215 }, 3216 .fixup_map1 = { 4 }, 3217 .result = REJECT, 3218 .errstr = "R4 !read_ok", 3219 .prog_type = BPF_PROG_TYPE_SCHED_CLS 3220 }, 3221 { 3222 "valid indirect map_lookup_elem access with 2nd lookup in branch", 3223 .insns = { 3224 BPF_MOV64_IMM(BPF_REG_1, 10), 3225 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), 3226 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 3227 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 3228 BPF_LD_MAP_FD(BPF_REG_1, 0), 3229 BPF_MOV64_REG(BPF_REG_8, BPF_REG_1), 3230 BPF_MOV64_REG(BPF_REG_7, BPF_REG_2), 3231 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 3232 BPF_FUNC_map_lookup_elem), 3233 BPF_MOV64_IMM(BPF_REG_2, 10), 3234 BPF_JMP_IMM(BPF_JNE, BPF_REG_2, 0, 3), 3235 BPF_MOV64_REG(BPF_REG_1, BPF_REG_8), 3236 BPF_MOV64_REG(BPF_REG_2, BPF_REG_7), 3237 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 3238 BPF_FUNC_map_lookup_elem), 3239 BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), 3240 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), 3241 BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0), 3242 BPF_EXIT_INSN(), 3243 }, 3244 .fixup_map1 = { 4 }, 3245 .result = ACCEPT, 3246 .prog_type = BPF_PROG_TYPE_SCHED_CLS 3247 }, 3248 { 3249 "multiple registers share map_lookup_elem bad reg type", 3250 .insns = { 3251 BPF_MOV64_IMM(BPF_REG_1, 10), 3252 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), 3253 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 3254 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 3255 BPF_LD_MAP_FD(BPF_REG_1, 0), 3256 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 3257 BPF_FUNC_map_lookup_elem), 3258 BPF_MOV64_REG(BPF_REG_2, BPF_REG_0), 3259 BPF_MOV64_REG(BPF_REG_3, BPF_REG_0), 3260 BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), 3261 BPF_MOV64_REG(BPF_REG_5, BPF_REG_0), 3262 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), 3263 BPF_MOV64_IMM(BPF_REG_1, 1), 3264 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), 3265 BPF_MOV64_IMM(BPF_REG_1, 2), 3266 BPF_JMP_IMM(BPF_JEQ, BPF_REG_3, 0, 1), 3267 BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 0), 3268 BPF_MOV64_IMM(BPF_REG_1, 3), 3269 BPF_EXIT_INSN(), 3270 }, 3271 .fixup_map1 = { 4 }, 3272 .result = REJECT, 3273 .errstr = "R3 invalid mem access 'inv'", 3274 .prog_type = BPF_PROG_TYPE_SCHED_CLS 3275 }, 3276 { 3277 "invalid map access from else condition", 3278 .insns = { 3279 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), 3280 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 3281 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 3282 BPF_LD_MAP_FD(BPF_REG_1, 0), 3283 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem), 3284 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), 3285 BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), 3286 BPF_JMP_IMM(BPF_JGE, BPF_REG_1, MAX_ENTRIES-1, 1), 3287 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 1), 3288 BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), 3289 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), 3290 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, offsetof(struct test_val, foo)), 3291 BPF_EXIT_INSN(), 3292 }, 3293 .fixup_map2 = { 3 }, 3294 .errstr = "R0 unbounded memory access, make sure to bounds check any array access into a map", 3295 .result = REJECT, 3296 .errstr_unpriv = "R0 pointer arithmetic prohibited", 3297 .result_unpriv = REJECT, 3298 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, 3299 }, 3300 { 3301 "constant register |= constant should keep constant type", 3302 .insns = { 3303 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), 3304 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48), 3305 BPF_MOV64_IMM(BPF_REG_2, 34), 3306 BPF_ALU64_IMM(BPF_OR, BPF_REG_2, 13), 3307 BPF_MOV64_IMM(BPF_REG_3, 0), 3308 BPF_EMIT_CALL(BPF_FUNC_probe_read), 3309 BPF_EXIT_INSN(), 3310 }, 3311 .result = ACCEPT, 3312 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 3313 }, 3314 { 3315 "constant register |= constant should not bypass stack boundary checks", 3316 .insns = { 3317 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), 3318 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48), 3319 BPF_MOV64_IMM(BPF_REG_2, 34), 3320 BPF_ALU64_IMM(BPF_OR, BPF_REG_2, 24), 3321 BPF_MOV64_IMM(BPF_REG_3, 0), 3322 BPF_EMIT_CALL(BPF_FUNC_probe_read), 3323 BPF_EXIT_INSN(), 3324 }, 3325 .errstr = "invalid stack type R1 off=-48 access_size=58", 3326 .result = REJECT, 3327 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 3328 }, 3329 { 3330 "constant register |= constant register should keep constant type", 3331 .insns = { 3332 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), 3333 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48), 3334 BPF_MOV64_IMM(BPF_REG_2, 34), 3335 BPF_MOV64_IMM(BPF_REG_4, 13), 3336 BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_4), 3337 BPF_MOV64_IMM(BPF_REG_3, 0), 3338 BPF_EMIT_CALL(BPF_FUNC_probe_read), 3339 BPF_EXIT_INSN(), 3340 }, 3341 .result = ACCEPT, 3342 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 3343 }, 3344 { 3345 "constant register |= constant register should not bypass stack boundary checks", 3346 .insns = { 3347 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), 3348 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48), 3349 BPF_MOV64_IMM(BPF_REG_2, 34), 3350 BPF_MOV64_IMM(BPF_REG_4, 24), 3351 BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_4), 3352 BPF_MOV64_IMM(BPF_REG_3, 0), 3353 BPF_EMIT_CALL(BPF_FUNC_probe_read), 3354 BPF_EXIT_INSN(), 3355 }, 3356 .errstr = "invalid stack type R1 off=-48 access_size=58", 3357 .result = REJECT, 3358 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 3359 }, 3360 { 3361 "invalid direct packet write for LWT_IN", 3362 .insns = { 3363 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 3364 offsetof(struct __sk_buff, data)), 3365 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, 3366 offsetof(struct __sk_buff, data_end)), 3367 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), 3368 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), 3369 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), 3370 BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), 3371 BPF_MOV64_IMM(BPF_REG_0, 0), 3372 BPF_EXIT_INSN(), 3373 }, 3374 .errstr = "cannot write into packet", 3375 .result = REJECT, 3376 .prog_type = BPF_PROG_TYPE_LWT_IN, 3377 }, 3378 { 3379 "invalid direct packet write for LWT_OUT", 3380 .insns = { 3381 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 3382 offsetof(struct __sk_buff, data)), 3383 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, 3384 offsetof(struct __sk_buff, data_end)), 3385 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), 3386 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), 3387 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), 3388 BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), 3389 BPF_MOV64_IMM(BPF_REG_0, 0), 3390 BPF_EXIT_INSN(), 3391 }, 3392 .errstr = "cannot write into packet", 3393 .result = REJECT, 3394 .prog_type = BPF_PROG_TYPE_LWT_OUT, 3395 }, 3396 { 3397 "direct packet write for LWT_XMIT", 3398 .insns = { 3399 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 3400 offsetof(struct __sk_buff, data)), 3401 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, 3402 offsetof(struct __sk_buff, data_end)), 3403 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), 3404 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), 3405 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), 3406 BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), 3407 BPF_MOV64_IMM(BPF_REG_0, 0), 3408 BPF_EXIT_INSN(), 3409 }, 3410 .result = ACCEPT, 3411 .prog_type = BPF_PROG_TYPE_LWT_XMIT, 3412 }, 3413 { 3414 "direct packet read for LWT_IN", 3415 .insns = { 3416 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 3417 offsetof(struct __sk_buff, data)), 3418 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, 3419 offsetof(struct __sk_buff, data_end)), 3420 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), 3421 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), 3422 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), 3423 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), 3424 BPF_MOV64_IMM(BPF_REG_0, 0), 3425 BPF_EXIT_INSN(), 3426 }, 3427 .result = ACCEPT, 3428 .prog_type = BPF_PROG_TYPE_LWT_IN, 3429 }, 3430 { 3431 "direct packet read for LWT_OUT", 3432 .insns = { 3433 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 3434 offsetof(struct __sk_buff, data)), 3435 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, 3436 offsetof(struct __sk_buff, data_end)), 3437 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), 3438 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), 3439 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), 3440 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), 3441 BPF_MOV64_IMM(BPF_REG_0, 0), 3442 BPF_EXIT_INSN(), 3443 }, 3444 .result = ACCEPT, 3445 .prog_type = BPF_PROG_TYPE_LWT_OUT, 3446 }, 3447 { 3448 "direct packet read for LWT_XMIT", 3449 .insns = { 3450 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 3451 offsetof(struct __sk_buff, data)), 3452 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, 3453 offsetof(struct __sk_buff, data_end)), 3454 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), 3455 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), 3456 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), 3457 BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), 3458 BPF_MOV64_IMM(BPF_REG_0, 0), 3459 BPF_EXIT_INSN(), 3460 }, 3461 .result = ACCEPT, 3462 .prog_type = BPF_PROG_TYPE_LWT_XMIT, 3463 }, 3464 { 3465 "overlapping checks for direct packet access", 3466 .insns = { 3467 BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 3468 offsetof(struct __sk_buff, data)), 3469 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, 3470 offsetof(struct __sk_buff, data_end)), 3471 BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), 3472 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), 3473 BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 4), 3474 BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), 3475 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 6), 3476 BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1), 3477 BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_2, 6), 3478 BPF_MOV64_IMM(BPF_REG_0, 0), 3479 BPF_EXIT_INSN(), 3480 }, 3481 .result = ACCEPT, 3482 .prog_type = BPF_PROG_TYPE_LWT_XMIT, 3483 }, 3484 { 3485 "invalid access of tc_classid for LWT_IN", 3486 .insns = { 3487 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 3488 offsetof(struct __sk_buff, tc_classid)), 3489 BPF_EXIT_INSN(), 3490 }, 3491 .result = REJECT, 3492 .errstr = "invalid bpf_context access", 3493 }, 3494 { 3495 "invalid access of tc_classid for LWT_OUT", 3496 .insns = { 3497 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 3498 offsetof(struct __sk_buff, tc_classid)), 3499 BPF_EXIT_INSN(), 3500 }, 3501 .result = REJECT, 3502 .errstr = "invalid bpf_context access", 3503 }, 3504 { 3505 "invalid access of tc_classid for LWT_XMIT", 3506 .insns = { 3507 BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 3508 offsetof(struct __sk_buff, tc_classid)), 3509 BPF_EXIT_INSN(), 3510 }, 3511 .result = REJECT, 3512 .errstr = "invalid bpf_context access", 3513 }, 3514 { 3515 "helper access to map: full range", 3516 .insns = { 3517 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 3518 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 3519 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), 3520 BPF_LD_MAP_FD(BPF_REG_1, 0), 3521 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), 3522 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), 3523 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), 3524 BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)), 3525 BPF_MOV64_IMM(BPF_REG_3, 0), 3526 BPF_EMIT_CALL(BPF_FUNC_probe_read), 3527 BPF_EXIT_INSN(), 3528 }, 3529 .fixup_map2 = { 3 }, 3530 .result = ACCEPT, 3531 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 3532 }, 3533 { 3534 "helper access to map: partial range", 3535 .insns = { 3536 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 3537 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 3538 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), 3539 BPF_LD_MAP_FD(BPF_REG_1, 0), 3540 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), 3541 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), 3542 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), 3543 BPF_MOV64_IMM(BPF_REG_2, 8), 3544 BPF_MOV64_IMM(BPF_REG_3, 0), 3545 BPF_EMIT_CALL(BPF_FUNC_probe_read), 3546 BPF_EXIT_INSN(), 3547 }, 3548 .fixup_map2 = { 3 }, 3549 .result = ACCEPT, 3550 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 3551 }, 3552 { 3553 "helper access to map: empty range", 3554 .insns = { 3555 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 3556 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 3557 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), 3558 BPF_LD_MAP_FD(BPF_REG_1, 0), 3559 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), 3560 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), 3561 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), 3562 BPF_MOV64_IMM(BPF_REG_2, 0), 3563 BPF_MOV64_IMM(BPF_REG_3, 0), 3564 BPF_EMIT_CALL(BPF_FUNC_probe_read), 3565 BPF_EXIT_INSN(), 3566 }, 3567 .fixup_map2 = { 3 }, 3568 .errstr = "invalid access to map value, value_size=48 off=0 size=0", 3569 .result = REJECT, 3570 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 3571 }, 3572 { 3573 "helper access to map: out-of-bound range", 3574 .insns = { 3575 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 3576 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 3577 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), 3578 BPF_LD_MAP_FD(BPF_REG_1, 0), 3579 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), 3580 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), 3581 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), 3582 BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val) + 8), 3583 BPF_MOV64_IMM(BPF_REG_3, 0), 3584 BPF_EMIT_CALL(BPF_FUNC_probe_read), 3585 BPF_EXIT_INSN(), 3586 }, 3587 .fixup_map2 = { 3 }, 3588 .errstr = "invalid access to map value, value_size=48 off=0 size=56", 3589 .result = REJECT, 3590 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 3591 }, 3592 { 3593 "helper access to map: negative range", 3594 .insns = { 3595 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 3596 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 3597 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), 3598 BPF_LD_MAP_FD(BPF_REG_1, 0), 3599 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), 3600 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), 3601 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), 3602 BPF_MOV64_IMM(BPF_REG_2, -8), 3603 BPF_MOV64_IMM(BPF_REG_3, 0), 3604 BPF_EMIT_CALL(BPF_FUNC_probe_read), 3605 BPF_EXIT_INSN(), 3606 }, 3607 .fixup_map2 = { 3 }, 3608 .errstr = "invalid access to map value, value_size=48 off=0 size=-8", 3609 .result = REJECT, 3610 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 3611 }, 3612 { 3613 "helper access to adjusted map (via const imm): full range", 3614 .insns = { 3615 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 3616 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 3617 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), 3618 BPF_LD_MAP_FD(BPF_REG_1, 0), 3619 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), 3620 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), 3621 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), 3622 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 3623 offsetof(struct test_val, foo)), 3624 BPF_MOV64_IMM(BPF_REG_2, 3625 sizeof(struct test_val) - 3626 offsetof(struct test_val, foo)), 3627 BPF_MOV64_IMM(BPF_REG_3, 0), 3628 BPF_EMIT_CALL(BPF_FUNC_probe_read), 3629 BPF_EXIT_INSN(), 3630 }, 3631 .fixup_map2 = { 3 }, 3632 .result = ACCEPT, 3633 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 3634 }, 3635 { 3636 "helper access to adjusted map (via const imm): partial range", 3637 .insns = { 3638 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 3639 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 3640 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), 3641 BPF_LD_MAP_FD(BPF_REG_1, 0), 3642 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), 3643 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), 3644 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), 3645 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 3646 offsetof(struct test_val, foo)), 3647 BPF_MOV64_IMM(BPF_REG_2, 8), 3648 BPF_MOV64_IMM(BPF_REG_3, 0), 3649 BPF_EMIT_CALL(BPF_FUNC_probe_read), 3650 BPF_EXIT_INSN(), 3651 }, 3652 .fixup_map2 = { 3 }, 3653 .result = ACCEPT, 3654 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 3655 }, 3656 { 3657 "helper access to adjusted map (via const imm): empty range", 3658 .insns = { 3659 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 3660 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 3661 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), 3662 BPF_LD_MAP_FD(BPF_REG_1, 0), 3663 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), 3664 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), 3665 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), 3666 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 3667 offsetof(struct test_val, foo)), 3668 BPF_MOV64_IMM(BPF_REG_2, 0), 3669 BPF_MOV64_IMM(BPF_REG_3, 0), 3670 BPF_EMIT_CALL(BPF_FUNC_probe_read), 3671 BPF_EXIT_INSN(), 3672 }, 3673 .fixup_map2 = { 3 }, 3674 .errstr = "R1 min value is outside of the array range", 3675 .result = REJECT, 3676 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 3677 }, 3678 { 3679 "helper access to adjusted map (via const imm): out-of-bound range", 3680 .insns = { 3681 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 3682 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 3683 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), 3684 BPF_LD_MAP_FD(BPF_REG_1, 0), 3685 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), 3686 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), 3687 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), 3688 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 3689 offsetof(struct test_val, foo)), 3690 BPF_MOV64_IMM(BPF_REG_2, 3691 sizeof(struct test_val) - 3692 offsetof(struct test_val, foo) + 8), 3693 BPF_MOV64_IMM(BPF_REG_3, 0), 3694 BPF_EMIT_CALL(BPF_FUNC_probe_read), 3695 BPF_EXIT_INSN(), 3696 }, 3697 .fixup_map2 = { 3 }, 3698 .errstr = "invalid access to map value, value_size=48 off=4 size=52", 3699 .result = REJECT, 3700 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 3701 }, 3702 { 3703 "helper access to adjusted map (via const imm): negative range (> adjustment)", 3704 .insns = { 3705 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 3706 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 3707 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), 3708 BPF_LD_MAP_FD(BPF_REG_1, 0), 3709 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), 3710 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), 3711 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), 3712 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 3713 offsetof(struct test_val, foo)), 3714 BPF_MOV64_IMM(BPF_REG_2, -8), 3715 BPF_MOV64_IMM(BPF_REG_3, 0), 3716 BPF_EMIT_CALL(BPF_FUNC_probe_read), 3717 BPF_EXIT_INSN(), 3718 }, 3719 .fixup_map2 = { 3 }, 3720 .errstr = "invalid access to map value, value_size=48 off=4 size=-8", 3721 .result = REJECT, 3722 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 3723 }, 3724 { 3725 "helper access to adjusted map (via const imm): negative range (< adjustment)", 3726 .insns = { 3727 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 3728 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 3729 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), 3730 BPF_LD_MAP_FD(BPF_REG_1, 0), 3731 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), 3732 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), 3733 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), 3734 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 3735 offsetof(struct test_val, foo)), 3736 BPF_MOV64_IMM(BPF_REG_2, -1), 3737 BPF_MOV64_IMM(BPF_REG_3, 0), 3738 BPF_EMIT_CALL(BPF_FUNC_probe_read), 3739 BPF_EXIT_INSN(), 3740 }, 3741 .fixup_map2 = { 3 }, 3742 .errstr = "R1 min value is outside of the array range", 3743 .result = REJECT, 3744 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 3745 }, 3746 { 3747 "helper access to adjusted map (via const reg): full range", 3748 .insns = { 3749 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 3750 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 3751 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), 3752 BPF_LD_MAP_FD(BPF_REG_1, 0), 3753 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), 3754 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), 3755 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), 3756 BPF_MOV64_IMM(BPF_REG_3, 3757 offsetof(struct test_val, foo)), 3758 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), 3759 BPF_MOV64_IMM(BPF_REG_2, 3760 sizeof(struct test_val) - 3761 offsetof(struct test_val, foo)), 3762 BPF_MOV64_IMM(BPF_REG_3, 0), 3763 BPF_EMIT_CALL(BPF_FUNC_probe_read), 3764 BPF_EXIT_INSN(), 3765 }, 3766 .fixup_map2 = { 3 }, 3767 .result = ACCEPT, 3768 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 3769 }, 3770 { 3771 "helper access to adjusted map (via const reg): partial range", 3772 .insns = { 3773 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 3774 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 3775 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), 3776 BPF_LD_MAP_FD(BPF_REG_1, 0), 3777 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), 3778 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), 3779 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), 3780 BPF_MOV64_IMM(BPF_REG_3, 3781 offsetof(struct test_val, foo)), 3782 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), 3783 BPF_MOV64_IMM(BPF_REG_2, 8), 3784 BPF_MOV64_IMM(BPF_REG_3, 0), 3785 BPF_EMIT_CALL(BPF_FUNC_probe_read), 3786 BPF_EXIT_INSN(), 3787 }, 3788 .fixup_map2 = { 3 }, 3789 .result = ACCEPT, 3790 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 3791 }, 3792 { 3793 "helper access to adjusted map (via const reg): empty range", 3794 .insns = { 3795 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 3796 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 3797 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), 3798 BPF_LD_MAP_FD(BPF_REG_1, 0), 3799 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), 3800 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), 3801 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), 3802 BPF_MOV64_IMM(BPF_REG_3, 0), 3803 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), 3804 BPF_MOV64_IMM(BPF_REG_2, 0), 3805 BPF_MOV64_IMM(BPF_REG_3, 0), 3806 BPF_EMIT_CALL(BPF_FUNC_probe_read), 3807 BPF_EXIT_INSN(), 3808 }, 3809 .fixup_map2 = { 3 }, 3810 .errstr = "R1 min value is outside of the array range", 3811 .result = REJECT, 3812 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 3813 }, 3814 { 3815 "helper access to adjusted map (via const reg): out-of-bound range", 3816 .insns = { 3817 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 3818 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 3819 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), 3820 BPF_LD_MAP_FD(BPF_REG_1, 0), 3821 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), 3822 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), 3823 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), 3824 BPF_MOV64_IMM(BPF_REG_3, 3825 offsetof(struct test_val, foo)), 3826 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), 3827 BPF_MOV64_IMM(BPF_REG_2, 3828 sizeof(struct test_val) - 3829 offsetof(struct test_val, foo) + 8), 3830 BPF_MOV64_IMM(BPF_REG_3, 0), 3831 BPF_EMIT_CALL(BPF_FUNC_probe_read), 3832 BPF_EXIT_INSN(), 3833 }, 3834 .fixup_map2 = { 3 }, 3835 .errstr = "invalid access to map value, value_size=48 off=4 size=52", 3836 .result = REJECT, 3837 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 3838 }, 3839 { 3840 "helper access to adjusted map (via const reg): negative range (> adjustment)", 3841 .insns = { 3842 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 3843 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 3844 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), 3845 BPF_LD_MAP_FD(BPF_REG_1, 0), 3846 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), 3847 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), 3848 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), 3849 BPF_MOV64_IMM(BPF_REG_3, 3850 offsetof(struct test_val, foo)), 3851 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), 3852 BPF_MOV64_IMM(BPF_REG_2, -8), 3853 BPF_MOV64_IMM(BPF_REG_3, 0), 3854 BPF_EMIT_CALL(BPF_FUNC_probe_read), 3855 BPF_EXIT_INSN(), 3856 }, 3857 .fixup_map2 = { 3 }, 3858 .errstr = "invalid access to map value, value_size=48 off=4 size=-8", 3859 .result = REJECT, 3860 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 3861 }, 3862 { 3863 "helper access to adjusted map (via const reg): negative range (< adjustment)", 3864 .insns = { 3865 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 3866 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 3867 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), 3868 BPF_LD_MAP_FD(BPF_REG_1, 0), 3869 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), 3870 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), 3871 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), 3872 BPF_MOV64_IMM(BPF_REG_3, 3873 offsetof(struct test_val, foo)), 3874 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), 3875 BPF_MOV64_IMM(BPF_REG_2, -1), 3876 BPF_MOV64_IMM(BPF_REG_3, 0), 3877 BPF_EMIT_CALL(BPF_FUNC_probe_read), 3878 BPF_EXIT_INSN(), 3879 }, 3880 .fixup_map2 = { 3 }, 3881 .errstr = "R1 min value is outside of the array range", 3882 .result = REJECT, 3883 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 3884 }, 3885 { 3886 "helper access to adjusted map (via variable): full range", 3887 .insns = { 3888 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 3889 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 3890 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), 3891 BPF_LD_MAP_FD(BPF_REG_1, 0), 3892 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), 3893 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), 3894 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), 3895 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), 3896 BPF_JMP_IMM(BPF_JGT, BPF_REG_3, 3897 offsetof(struct test_val, foo), 4), 3898 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), 3899 BPF_MOV64_IMM(BPF_REG_2, 3900 sizeof(struct test_val) - 3901 offsetof(struct test_val, foo)), 3902 BPF_MOV64_IMM(BPF_REG_3, 0), 3903 BPF_EMIT_CALL(BPF_FUNC_probe_read), 3904 BPF_EXIT_INSN(), 3905 }, 3906 .fixup_map2 = { 3 }, 3907 .result = ACCEPT, 3908 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 3909 }, 3910 { 3911 "helper access to adjusted map (via variable): partial range", 3912 .insns = { 3913 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 3914 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 3915 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), 3916 BPF_LD_MAP_FD(BPF_REG_1, 0), 3917 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), 3918 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), 3919 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), 3920 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), 3921 BPF_JMP_IMM(BPF_JGT, BPF_REG_3, 3922 offsetof(struct test_val, foo), 4), 3923 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), 3924 BPF_MOV64_IMM(BPF_REG_2, 8), 3925 BPF_MOV64_IMM(BPF_REG_3, 0), 3926 BPF_EMIT_CALL(BPF_FUNC_probe_read), 3927 BPF_EXIT_INSN(), 3928 }, 3929 .fixup_map2 = { 3 }, 3930 .result = ACCEPT, 3931 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 3932 }, 3933 { 3934 "helper access to adjusted map (via variable): empty range", 3935 .insns = { 3936 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 3937 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 3938 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), 3939 BPF_LD_MAP_FD(BPF_REG_1, 0), 3940 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), 3941 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), 3942 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), 3943 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), 3944 BPF_JMP_IMM(BPF_JGT, BPF_REG_3, 3945 offsetof(struct test_val, foo), 4), 3946 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), 3947 BPF_MOV64_IMM(BPF_REG_2, 0), 3948 BPF_MOV64_IMM(BPF_REG_3, 0), 3949 BPF_EMIT_CALL(BPF_FUNC_probe_read), 3950 BPF_EXIT_INSN(), 3951 }, 3952 .fixup_map2 = { 3 }, 3953 .errstr = "R1 min value is outside of the array range", 3954 .result = REJECT, 3955 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 3956 }, 3957 { 3958 "helper access to adjusted map (via variable): no max check", 3959 .insns = { 3960 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 3961 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 3962 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), 3963 BPF_LD_MAP_FD(BPF_REG_1, 0), 3964 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), 3965 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), 3966 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), 3967 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), 3968 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), 3969 BPF_MOV64_IMM(BPF_REG_2, 0), 3970 BPF_MOV64_IMM(BPF_REG_3, 0), 3971 BPF_EMIT_CALL(BPF_FUNC_probe_read), 3972 BPF_EXIT_INSN(), 3973 }, 3974 .fixup_map2 = { 3 }, 3975 .errstr = "R1 min value is negative, either use unsigned index or do a if (index >=0) check", 3976 .result = REJECT, 3977 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 3978 }, 3979 { 3980 "helper access to adjusted map (via variable): wrong max check", 3981 .insns = { 3982 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 3983 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 3984 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), 3985 BPF_LD_MAP_FD(BPF_REG_1, 0), 3986 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), 3987 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), 3988 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), 3989 BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), 3990 BPF_JMP_IMM(BPF_JGT, BPF_REG_3, 3991 offsetof(struct test_val, foo), 4), 3992 BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), 3993 BPF_MOV64_IMM(BPF_REG_2, 3994 sizeof(struct test_val) - 3995 offsetof(struct test_val, foo) + 1), 3996 BPF_MOV64_IMM(BPF_REG_3, 0), 3997 BPF_EMIT_CALL(BPF_FUNC_probe_read), 3998 BPF_EXIT_INSN(), 3999 }, 4000 .fixup_map2 = { 3 }, 4001 .errstr = "invalid access to map value, value_size=48 off=4 size=45", 4002 .result = REJECT, 4003 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 4004 }, 4005 { 4006 "map element value is preserved across register spilling", 4007 .insns = { 4008 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 4009 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 4010 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), 4011 BPF_LD_MAP_FD(BPF_REG_1, 0), 4012 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), 4013 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), 4014 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42), 4015 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), 4016 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -184), 4017 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0), 4018 BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1, 0), 4019 BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 42), 4020 BPF_EXIT_INSN(), 4021 }, 4022 .fixup_map2 = { 3 }, 4023 .errstr_unpriv = "R0 leaks addr", 4024 .result = ACCEPT, 4025 .result_unpriv = REJECT, 4026 }, 4027 { 4028 "map element value or null is marked on register spilling", 4029 .insns = { 4030 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 4031 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 4032 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), 4033 BPF_LD_MAP_FD(BPF_REG_1, 0), 4034 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), 4035 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), 4036 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -152), 4037 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0), 4038 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), 4039 BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1, 0), 4040 BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 42), 4041 BPF_EXIT_INSN(), 4042 }, 4043 .fixup_map2 = { 3 }, 4044 .errstr_unpriv = "R0 leaks addr", 4045 .result = ACCEPT, 4046 .result_unpriv = REJECT, 4047 }, 4048 { 4049 "map element value store of cleared call register", 4050 .insns = { 4051 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 4052 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 4053 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), 4054 BPF_LD_MAP_FD(BPF_REG_1, 0), 4055 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), 4056 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), 4057 BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 0), 4058 BPF_EXIT_INSN(), 4059 }, 4060 .fixup_map2 = { 3 }, 4061 .errstr_unpriv = "R1 !read_ok", 4062 .errstr = "R1 !read_ok", 4063 .result = REJECT, 4064 .result_unpriv = REJECT, 4065 }, 4066 { 4067 "map element value with unaligned store", 4068 .insns = { 4069 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 4070 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 4071 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), 4072 BPF_LD_MAP_FD(BPF_REG_1, 0), 4073 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), 4074 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 17), 4075 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 3), 4076 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42), 4077 BPF_ST_MEM(BPF_DW, BPF_REG_0, 2, 43), 4078 BPF_ST_MEM(BPF_DW, BPF_REG_0, -2, 44), 4079 BPF_MOV64_REG(BPF_REG_8, BPF_REG_0), 4080 BPF_ST_MEM(BPF_DW, BPF_REG_8, 0, 32), 4081 BPF_ST_MEM(BPF_DW, BPF_REG_8, 2, 33), 4082 BPF_ST_MEM(BPF_DW, BPF_REG_8, -2, 34), 4083 BPF_ALU64_IMM(BPF_ADD, BPF_REG_8, 5), 4084 BPF_ST_MEM(BPF_DW, BPF_REG_8, 0, 22), 4085 BPF_ST_MEM(BPF_DW, BPF_REG_8, 4, 23), 4086 BPF_ST_MEM(BPF_DW, BPF_REG_8, -7, 24), 4087 BPF_MOV64_REG(BPF_REG_7, BPF_REG_8), 4088 BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, 3), 4089 BPF_ST_MEM(BPF_DW, BPF_REG_7, 0, 22), 4090 BPF_ST_MEM(BPF_DW, BPF_REG_7, 4, 23), 4091 BPF_ST_MEM(BPF_DW, BPF_REG_7, -4, 24), 4092 BPF_EXIT_INSN(), 4093 }, 4094 .fixup_map2 = { 3 }, 4095 .errstr_unpriv = "R0 pointer arithmetic prohibited", 4096 .result = ACCEPT, 4097 .result_unpriv = REJECT, 4098 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, 4099 }, 4100 { 4101 "map element value with unaligned load", 4102 .insns = { 4103 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 4104 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 4105 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), 4106 BPF_LD_MAP_FD(BPF_REG_1, 0), 4107 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), 4108 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 11), 4109 BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), 4110 BPF_JMP_IMM(BPF_JGE, BPF_REG_1, MAX_ENTRIES, 9), 4111 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 3), 4112 BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0), 4113 BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 2), 4114 BPF_MOV64_REG(BPF_REG_8, BPF_REG_0), 4115 BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_8, 0), 4116 BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_8, 2), 4117 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 5), 4118 BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0), 4119 BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 4), 4120 BPF_EXIT_INSN(), 4121 }, 4122 .fixup_map2 = { 3 }, 4123 .errstr_unpriv = "R0 pointer arithmetic prohibited", 4124 .result = ACCEPT, 4125 .result_unpriv = REJECT, 4126 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, 4127 }, 4128 { 4129 "map element value illegal alu op, 1", 4130 .insns = { 4131 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 4132 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 4133 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), 4134 BPF_LD_MAP_FD(BPF_REG_1, 0), 4135 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), 4136 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), 4137 BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 8), 4138 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22), 4139 BPF_EXIT_INSN(), 4140 }, 4141 .fixup_map2 = { 3 }, 4142 .errstr_unpriv = "R0 pointer arithmetic prohibited", 4143 .errstr = "invalid mem access 'inv'", 4144 .result = REJECT, 4145 .result_unpriv = REJECT, 4146 }, 4147 { 4148 "map element value illegal alu op, 2", 4149 .insns = { 4150 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 4151 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 4152 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), 4153 BPF_LD_MAP_FD(BPF_REG_1, 0), 4154 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), 4155 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), 4156 BPF_ALU32_IMM(BPF_ADD, BPF_REG_0, 0), 4157 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22), 4158 BPF_EXIT_INSN(), 4159 }, 4160 .fixup_map2 = { 3 }, 4161 .errstr_unpriv = "R0 pointer arithmetic prohibited", 4162 .errstr = "invalid mem access 'inv'", 4163 .result = REJECT, 4164 .result_unpriv = REJECT, 4165 }, 4166 { 4167 "map element value illegal alu op, 3", 4168 .insns = { 4169 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 4170 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 4171 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), 4172 BPF_LD_MAP_FD(BPF_REG_1, 0), 4173 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), 4174 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), 4175 BPF_ALU64_IMM(BPF_DIV, BPF_REG_0, 42), 4176 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22), 4177 BPF_EXIT_INSN(), 4178 }, 4179 .fixup_map2 = { 3 }, 4180 .errstr_unpriv = "R0 pointer arithmetic prohibited", 4181 .errstr = "invalid mem access 'inv'", 4182 .result = REJECT, 4183 .result_unpriv = REJECT, 4184 }, 4185 { 4186 "map element value illegal alu op, 4", 4187 .insns = { 4188 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 4189 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 4190 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), 4191 BPF_LD_MAP_FD(BPF_REG_1, 0), 4192 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), 4193 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), 4194 BPF_ENDIAN(BPF_FROM_BE, BPF_REG_0, 64), 4195 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22), 4196 BPF_EXIT_INSN(), 4197 }, 4198 .fixup_map2 = { 3 }, 4199 .errstr_unpriv = "R0 pointer arithmetic prohibited", 4200 .errstr = "invalid mem access 'inv'", 4201 .result = REJECT, 4202 .result_unpriv = REJECT, 4203 }, 4204 { 4205 "map element value illegal alu op, 5", 4206 .insns = { 4207 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 4208 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 4209 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), 4210 BPF_LD_MAP_FD(BPF_REG_1, 0), 4211 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), 4212 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), 4213 BPF_MOV64_IMM(BPF_REG_3, 4096), 4214 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 4215 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 4216 BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_0, 0), 4217 BPF_STX_XADD(BPF_DW, BPF_REG_2, BPF_REG_3, 0), 4218 BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, 0), 4219 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22), 4220 BPF_EXIT_INSN(), 4221 }, 4222 .fixup_map2 = { 3 }, 4223 .errstr_unpriv = "R0 invalid mem access 'inv'", 4224 .errstr = "R0 invalid mem access 'inv'", 4225 .result = REJECT, 4226 .result_unpriv = REJECT, 4227 }, 4228 { 4229 "map element value is preserved across register spilling", 4230 .insns = { 4231 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 4232 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 4233 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), 4234 BPF_LD_MAP_FD(BPF_REG_1, 0), 4235 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), 4236 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), 4237 BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 4238 offsetof(struct test_val, foo)), 4239 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42), 4240 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), 4241 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -184), 4242 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0), 4243 BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1, 0), 4244 BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 42), 4245 BPF_EXIT_INSN(), 4246 }, 4247 .fixup_map2 = { 3 }, 4248 .errstr_unpriv = "R0 pointer arithmetic prohibited", 4249 .result = ACCEPT, 4250 .result_unpriv = REJECT, 4251 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, 4252 }, 4253 { 4254 "helper access to variable memory: stack, bitwise AND + JMP, correct bounds", 4255 .insns = { 4256 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), 4257 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), 4258 BPF_MOV64_IMM(BPF_REG_0, 0), 4259 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64), 4260 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56), 4261 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48), 4262 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40), 4263 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -32), 4264 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24), 4265 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16), 4266 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), 4267 BPF_MOV64_IMM(BPF_REG_2, 16), 4268 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), 4269 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), 4270 BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 64), 4271 BPF_MOV64_IMM(BPF_REG_4, 0), 4272 BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), 4273 BPF_MOV64_IMM(BPF_REG_3, 0), 4274 BPF_EMIT_CALL(BPF_FUNC_probe_read), 4275 BPF_MOV64_IMM(BPF_REG_0, 0), 4276 BPF_EXIT_INSN(), 4277 }, 4278 .result = ACCEPT, 4279 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 4280 }, 4281 { 4282 "helper access to variable memory: stack, bitwise AND, zero included", 4283 .insns = { 4284 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), 4285 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), 4286 BPF_MOV64_IMM(BPF_REG_2, 16), 4287 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), 4288 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), 4289 BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 64), 4290 BPF_MOV64_IMM(BPF_REG_3, 0), 4291 BPF_EMIT_CALL(BPF_FUNC_probe_read), 4292 BPF_EXIT_INSN(), 4293 }, 4294 .errstr = "invalid stack type R1 off=-64 access_size=0", 4295 .result = REJECT, 4296 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 4297 }, 4298 { 4299 "helper access to variable memory: stack, bitwise AND + JMP, wrong max", 4300 .insns = { 4301 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), 4302 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), 4303 BPF_MOV64_IMM(BPF_REG_2, 16), 4304 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), 4305 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), 4306 BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 65), 4307 BPF_MOV64_IMM(BPF_REG_4, 0), 4308 BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), 4309 BPF_MOV64_IMM(BPF_REG_3, 0), 4310 BPF_EMIT_CALL(BPF_FUNC_probe_read), 4311 BPF_MOV64_IMM(BPF_REG_0, 0), 4312 BPF_EXIT_INSN(), 4313 }, 4314 .errstr = "invalid stack type R1 off=-64 access_size=65", 4315 .result = REJECT, 4316 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 4317 }, 4318 { 4319 "helper access to variable memory: stack, JMP, correct bounds", 4320 .insns = { 4321 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), 4322 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), 4323 BPF_MOV64_IMM(BPF_REG_0, 0), 4324 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64), 4325 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56), 4326 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48), 4327 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40), 4328 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -32), 4329 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24), 4330 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16), 4331 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), 4332 BPF_MOV64_IMM(BPF_REG_2, 16), 4333 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), 4334 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), 4335 BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 64, 4), 4336 BPF_MOV64_IMM(BPF_REG_4, 0), 4337 BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), 4338 BPF_MOV64_IMM(BPF_REG_3, 0), 4339 BPF_EMIT_CALL(BPF_FUNC_probe_read), 4340 BPF_MOV64_IMM(BPF_REG_0, 0), 4341 BPF_EXIT_INSN(), 4342 }, 4343 .result = ACCEPT, 4344 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 4345 }, 4346 { 4347 "helper access to variable memory: stack, JMP (signed), correct bounds", 4348 .insns = { 4349 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), 4350 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), 4351 BPF_MOV64_IMM(BPF_REG_0, 0), 4352 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64), 4353 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56), 4354 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48), 4355 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40), 4356 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -32), 4357 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24), 4358 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16), 4359 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), 4360 BPF_MOV64_IMM(BPF_REG_2, 16), 4361 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), 4362 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), 4363 BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, 64, 4), 4364 BPF_MOV64_IMM(BPF_REG_4, 0), 4365 BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2), 4366 BPF_MOV64_IMM(BPF_REG_3, 0), 4367 BPF_EMIT_CALL(BPF_FUNC_probe_read), 4368 BPF_MOV64_IMM(BPF_REG_0, 0), 4369 BPF_EXIT_INSN(), 4370 }, 4371 .result = ACCEPT, 4372 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 4373 }, 4374 { 4375 "helper access to variable memory: stack, JMP, bounds + offset", 4376 .insns = { 4377 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), 4378 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), 4379 BPF_MOV64_IMM(BPF_REG_2, 16), 4380 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), 4381 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), 4382 BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 64, 5), 4383 BPF_MOV64_IMM(BPF_REG_4, 0), 4384 BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 3), 4385 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), 4386 BPF_MOV64_IMM(BPF_REG_3, 0), 4387 BPF_EMIT_CALL(BPF_FUNC_probe_read), 4388 BPF_MOV64_IMM(BPF_REG_0, 0), 4389 BPF_EXIT_INSN(), 4390 }, 4391 .errstr = "invalid stack type R1 off=-64 access_size=65", 4392 .result = REJECT, 4393 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 4394 }, 4395 { 4396 "helper access to variable memory: stack, JMP, wrong max", 4397 .insns = { 4398 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), 4399 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), 4400 BPF_MOV64_IMM(BPF_REG_2, 16), 4401 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), 4402 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), 4403 BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 65, 4), 4404 BPF_MOV64_IMM(BPF_REG_4, 0), 4405 BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), 4406 BPF_MOV64_IMM(BPF_REG_3, 0), 4407 BPF_EMIT_CALL(BPF_FUNC_probe_read), 4408 BPF_MOV64_IMM(BPF_REG_0, 0), 4409 BPF_EXIT_INSN(), 4410 }, 4411 .errstr = "invalid stack type R1 off=-64 access_size=65", 4412 .result = REJECT, 4413 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 4414 }, 4415 { 4416 "helper access to variable memory: stack, JMP, no max check", 4417 .insns = { 4418 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), 4419 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), 4420 BPF_MOV64_IMM(BPF_REG_2, 16), 4421 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), 4422 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), 4423 BPF_MOV64_IMM(BPF_REG_4, 0), 4424 BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), 4425 BPF_MOV64_IMM(BPF_REG_3, 0), 4426 BPF_EMIT_CALL(BPF_FUNC_probe_read), 4427 BPF_MOV64_IMM(BPF_REG_0, 0), 4428 BPF_EXIT_INSN(), 4429 }, 4430 .errstr = "R2 unbounded memory access", 4431 .result = REJECT, 4432 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 4433 }, 4434 { 4435 "helper access to variable memory: stack, JMP, no min check", 4436 .insns = { 4437 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), 4438 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), 4439 BPF_MOV64_IMM(BPF_REG_2, 16), 4440 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), 4441 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), 4442 BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 64, 3), 4443 BPF_MOV64_IMM(BPF_REG_3, 0), 4444 BPF_EMIT_CALL(BPF_FUNC_probe_read), 4445 BPF_MOV64_IMM(BPF_REG_0, 0), 4446 BPF_EXIT_INSN(), 4447 }, 4448 .errstr = "invalid stack type R1 off=-64 access_size=0", 4449 .result = REJECT, 4450 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 4451 }, 4452 { 4453 "helper access to variable memory: stack, JMP (signed), no min check", 4454 .insns = { 4455 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), 4456 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), 4457 BPF_MOV64_IMM(BPF_REG_2, 16), 4458 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), 4459 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), 4460 BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, 64, 3), 4461 BPF_MOV64_IMM(BPF_REG_3, 0), 4462 BPF_EMIT_CALL(BPF_FUNC_probe_read), 4463 BPF_MOV64_IMM(BPF_REG_0, 0), 4464 BPF_EXIT_INSN(), 4465 }, 4466 .errstr = "R2 min value is negative", 4467 .result = REJECT, 4468 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 4469 }, 4470 { 4471 "helper access to variable memory: map, JMP, correct bounds", 4472 .insns = { 4473 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 4474 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 4475 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), 4476 BPF_LD_MAP_FD(BPF_REG_1, 0), 4477 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), 4478 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10), 4479 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), 4480 BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)), 4481 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128), 4482 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128), 4483 BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, 4484 sizeof(struct test_val), 4), 4485 BPF_MOV64_IMM(BPF_REG_4, 0), 4486 BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), 4487 BPF_MOV64_IMM(BPF_REG_3, 0), 4488 BPF_EMIT_CALL(BPF_FUNC_probe_read), 4489 BPF_MOV64_IMM(BPF_REG_0, 0), 4490 BPF_EXIT_INSN(), 4491 }, 4492 .fixup_map2 = { 3 }, 4493 .result = ACCEPT, 4494 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 4495 }, 4496 { 4497 "helper access to variable memory: map, JMP, wrong max", 4498 .insns = { 4499 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 4500 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 4501 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), 4502 BPF_LD_MAP_FD(BPF_REG_1, 0), 4503 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), 4504 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10), 4505 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), 4506 BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)), 4507 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128), 4508 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128), 4509 BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, 4510 sizeof(struct test_val) + 1, 4), 4511 BPF_MOV64_IMM(BPF_REG_4, 0), 4512 BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), 4513 BPF_MOV64_IMM(BPF_REG_3, 0), 4514 BPF_EMIT_CALL(BPF_FUNC_probe_read), 4515 BPF_MOV64_IMM(BPF_REG_0, 0), 4516 BPF_EXIT_INSN(), 4517 }, 4518 .fixup_map2 = { 3 }, 4519 .errstr = "invalid access to map value, value_size=48 off=0 size=49", 4520 .result = REJECT, 4521 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 4522 }, 4523 { 4524 "helper access to variable memory: map adjusted, JMP, correct bounds", 4525 .insns = { 4526 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 4527 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 4528 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), 4529 BPF_LD_MAP_FD(BPF_REG_1, 0), 4530 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), 4531 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 11), 4532 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), 4533 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 20), 4534 BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)), 4535 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128), 4536 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128), 4537 BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, 4538 sizeof(struct test_val) - 20, 4), 4539 BPF_MOV64_IMM(BPF_REG_4, 0), 4540 BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), 4541 BPF_MOV64_IMM(BPF_REG_3, 0), 4542 BPF_EMIT_CALL(BPF_FUNC_probe_read), 4543 BPF_MOV64_IMM(BPF_REG_0, 0), 4544 BPF_EXIT_INSN(), 4545 }, 4546 .fixup_map2 = { 3 }, 4547 .result = ACCEPT, 4548 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 4549 }, 4550 { 4551 "helper access to variable memory: map adjusted, JMP, wrong max", 4552 .insns = { 4553 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 4554 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 4555 BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), 4556 BPF_LD_MAP_FD(BPF_REG_1, 0), 4557 BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), 4558 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 11), 4559 BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), 4560 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 20), 4561 BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)), 4562 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128), 4563 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128), 4564 BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, 4565 sizeof(struct test_val) - 19, 4), 4566 BPF_MOV64_IMM(BPF_REG_4, 0), 4567 BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), 4568 BPF_MOV64_IMM(BPF_REG_3, 0), 4569 BPF_EMIT_CALL(BPF_FUNC_probe_read), 4570 BPF_MOV64_IMM(BPF_REG_0, 0), 4571 BPF_EXIT_INSN(), 4572 }, 4573 .fixup_map2 = { 3 }, 4574 .errstr = "R1 min value is outside of the array range", 4575 .result = REJECT, 4576 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 4577 }, 4578 { 4579 "helper access to variable memory: size > 0 not allowed on NULL", 4580 .insns = { 4581 BPF_MOV64_IMM(BPF_REG_1, 0), 4582 BPF_MOV64_IMM(BPF_REG_2, 0), 4583 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128), 4584 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128), 4585 BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 64), 4586 BPF_MOV64_IMM(BPF_REG_3, 0), 4587 BPF_MOV64_IMM(BPF_REG_4, 0), 4588 BPF_MOV64_IMM(BPF_REG_5, 0), 4589 BPF_EMIT_CALL(BPF_FUNC_csum_diff), 4590 BPF_EXIT_INSN(), 4591 }, 4592 .errstr = "R1 type=imm expected=fp", 4593 .result = REJECT, 4594 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 4595 }, 4596 { 4597 "helper access to variable memory: size = 0 not allowed on != NULL", 4598 .insns = { 4599 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), 4600 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8), 4601 BPF_MOV64_IMM(BPF_REG_2, 0), 4602 BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, 0), 4603 BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 8), 4604 BPF_MOV64_IMM(BPF_REG_3, 0), 4605 BPF_MOV64_IMM(BPF_REG_4, 0), 4606 BPF_MOV64_IMM(BPF_REG_5, 0), 4607 BPF_EMIT_CALL(BPF_FUNC_csum_diff), 4608 BPF_EXIT_INSN(), 4609 }, 4610 .errstr = "invalid stack type R1 off=-8 access_size=0", 4611 .result = REJECT, 4612 .prog_type = BPF_PROG_TYPE_SCHED_CLS, 4613 }, 4614 { 4615 "helper access to variable memory: 8 bytes leak", 4616 .insns = { 4617 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), 4618 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), 4619 BPF_MOV64_IMM(BPF_REG_0, 0), 4620 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64), 4621 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56), 4622 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48), 4623 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40), 4624 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24), 4625 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16), 4626 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), 4627 BPF_MOV64_IMM(BPF_REG_2, 0), 4628 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128), 4629 BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128), 4630 BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 63), 4631 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), 4632 BPF_MOV64_IMM(BPF_REG_3, 0), 4633 BPF_EMIT_CALL(BPF_FUNC_probe_read), 4634 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), 4635 BPF_EXIT_INSN(), 4636 }, 4637 .errstr = "invalid indirect read from stack off -64+32 size 64", 4638 .result = REJECT, 4639 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 4640 }, 4641 { 4642 "helper access to variable memory: 8 bytes no leak (init memory)", 4643 .insns = { 4644 BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), 4645 BPF_MOV64_IMM(BPF_REG_0, 0), 4646 BPF_MOV64_IMM(BPF_REG_0, 0), 4647 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64), 4648 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56), 4649 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48), 4650 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40), 4651 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -32), 4652 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24), 4653 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16), 4654 BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), 4655 BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), 4656 BPF_MOV64_IMM(BPF_REG_2, 0), 4657 BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 32), 4658 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 32), 4659 BPF_MOV64_IMM(BPF_REG_3, 0), 4660 BPF_EMIT_CALL(BPF_FUNC_probe_read), 4661 BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), 4662 BPF_EXIT_INSN(), 4663 }, 4664 .result = ACCEPT, 4665 .prog_type = BPF_PROG_TYPE_TRACEPOINT, 4666 }, 4667 { 4668 "invalid and of negative number", 4669 .insns = { 4670 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), 4671 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 4672 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 4673 BPF_LD_MAP_FD(BPF_REG_1, 0), 4674 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 4675 BPF_FUNC_map_lookup_elem), 4676 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), 4677 BPF_MOV64_IMM(BPF_REG_1, 6), 4678 BPF_ALU64_IMM(BPF_AND, BPF_REG_1, -4), 4679 BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), 4680 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), 4681 BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 4682 offsetof(struct test_val, foo)), 4683 BPF_EXIT_INSN(), 4684 }, 4685 .fixup_map2 = { 3 }, 4686 .errstr_unpriv = "R0 pointer arithmetic prohibited", 4687 .errstr = "R0 min value is negative, either use unsigned index or do a if (index >=0) check.", 4688 .result = REJECT, 4689 .result_unpriv = REJECT, 4690 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, 4691 }, 4692 { 4693 "invalid range check", 4694 .insns = { 4695 BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), 4696 BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), 4697 BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), 4698 BPF_LD_MAP_FD(BPF_REG_1, 0), 4699 BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 4700 BPF_FUNC_map_lookup_elem), 4701 BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 12), 4702 BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), 4703 BPF_MOV64_IMM(BPF_REG_9, 1), 4704 BPF_ALU32_IMM(BPF_MOD, BPF_REG_1, 2), 4705 BPF_ALU32_IMM(BPF_ADD, BPF_REG_1, 1), 4706 BPF_ALU32_REG(BPF_AND, BPF_REG_9, BPF_REG_1), 4707 BPF_ALU32_IMM(BPF_ADD, BPF_REG_9, 1), 4708 BPF_ALU32_IMM(BPF_RSH, BPF_REG_9, 1), 4709 BPF_MOV32_IMM(BPF_REG_3, 1), 4710 BPF_ALU32_REG(BPF_SUB, BPF_REG_3, BPF_REG_9), 4711 BPF_ALU32_IMM(BPF_MUL, BPF_REG_3, 0x10000000), 4712 BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_3), 4713 BPF_STX_MEM(BPF_W, BPF_REG_0, BPF_REG_3, 0), 4714 BPF_MOV64_REG(BPF_REG_0, 0), 4715 BPF_EXIT_INSN(), 4716 }, 4717 .fixup_map2 = { 3 }, 4718 .errstr_unpriv = "R0 pointer arithmetic prohibited", 4719 .errstr = "R0 min value is negative, either use unsigned index or do a if (index >=0) check.", 4720 .result = REJECT, 4721 .result_unpriv = REJECT, 4722 .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, 4723 } 4724 }; 4725 4726 static int probe_filter_length(const struct bpf_insn *fp) 4727 { 4728 int len; 4729 4730 for (len = MAX_INSNS - 1; len > 0; --len) 4731 if (fp[len].code != 0 || fp[len].imm != 0) 4732 break; 4733 return len + 1; 4734 } 4735 4736 static int create_map(uint32_t size_value, uint32_t max_elem) 4737 { 4738 int fd; 4739 4740 fd = bpf_create_map(BPF_MAP_TYPE_HASH, sizeof(long long), 4741 size_value, max_elem, BPF_F_NO_PREALLOC); 4742 if (fd < 0) 4743 printf("Failed to create hash map '%s'!\n", strerror(errno)); 4744 4745 return fd; 4746 } 4747 4748 static int create_prog_array(void) 4749 { 4750 int fd; 4751 4752 fd = bpf_create_map(BPF_MAP_TYPE_PROG_ARRAY, sizeof(int), 4753 sizeof(int), 4, 0); 4754 if (fd < 0) 4755 printf("Failed to create prog array '%s'!\n", strerror(errno)); 4756 4757 return fd; 4758 } 4759 4760 static char bpf_vlog[32768]; 4761 4762 static void do_test_fixup(struct bpf_test *test, struct bpf_insn *prog, 4763 int *fd_f1, int *fd_f2, int *fd_f3) 4764 { 4765 int *fixup_map1 = test->fixup_map1; 4766 int *fixup_map2 = test->fixup_map2; 4767 int *fixup_prog = test->fixup_prog; 4768 4769 /* Allocating HTs with 1 elem is fine here, since we only test 4770 * for verifier and not do a runtime lookup, so the only thing 4771 * that really matters is value size in this case. 4772 */ 4773 if (*fixup_map1) { 4774 *fd_f1 = create_map(sizeof(long long), 1); 4775 do { 4776 prog[*fixup_map1].imm = *fd_f1; 4777 fixup_map1++; 4778 } while (*fixup_map1); 4779 } 4780 4781 if (*fixup_map2) { 4782 *fd_f2 = create_map(sizeof(struct test_val), 1); 4783 do { 4784 prog[*fixup_map2].imm = *fd_f2; 4785 fixup_map2++; 4786 } while (*fixup_map2); 4787 } 4788 4789 if (*fixup_prog) { 4790 *fd_f3 = create_prog_array(); 4791 do { 4792 prog[*fixup_prog].imm = *fd_f3; 4793 fixup_prog++; 4794 } while (*fixup_prog); 4795 } 4796 } 4797 4798 static void do_test_single(struct bpf_test *test, bool unpriv, 4799 int *passes, int *errors) 4800 { 4801 int fd_prog, expected_ret, reject_from_alignment; 4802 struct bpf_insn *prog = test->insns; 4803 int prog_len = probe_filter_length(prog); 4804 int prog_type = test->prog_type; 4805 int fd_f1 = -1, fd_f2 = -1, fd_f3 = -1; 4806 const char *expected_err; 4807 4808 do_test_fixup(test, prog, &fd_f1, &fd_f2, &fd_f3); 4809 4810 fd_prog = bpf_load_program(prog_type ? : BPF_PROG_TYPE_SOCKET_FILTER, 4811 prog, prog_len, "GPL", 0, bpf_vlog, 4812 sizeof(bpf_vlog)); 4813 4814 expected_ret = unpriv && test->result_unpriv != UNDEF ? 4815 test->result_unpriv : test->result; 4816 expected_err = unpriv && test->errstr_unpriv ? 4817 test->errstr_unpriv : test->errstr; 4818 4819 reject_from_alignment = fd_prog < 0 && 4820 (test->flags & F_NEEDS_EFFICIENT_UNALIGNED_ACCESS) && 4821 strstr(bpf_vlog, "Unknown alignment."); 4822 #ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS 4823 if (reject_from_alignment) { 4824 printf("FAIL\nFailed due to alignment despite having efficient unaligned access: '%s'!\n", 4825 strerror(errno)); 4826 goto fail_log; 4827 } 4828 #endif 4829 if (expected_ret == ACCEPT) { 4830 if (fd_prog < 0 && !reject_from_alignment) { 4831 printf("FAIL\nFailed to load prog '%s'!\n", 4832 strerror(errno)); 4833 goto fail_log; 4834 } 4835 } else { 4836 if (fd_prog >= 0) { 4837 printf("FAIL\nUnexpected success to load!\n"); 4838 goto fail_log; 4839 } 4840 if (!strstr(bpf_vlog, expected_err) && !reject_from_alignment) { 4841 printf("FAIL\nUnexpected error message!\n"); 4842 goto fail_log; 4843 } 4844 } 4845 4846 (*passes)++; 4847 printf("OK%s\n", reject_from_alignment ? 4848 " (NOTE: reject due to unknown alignment)" : ""); 4849 close_fds: 4850 close(fd_prog); 4851 close(fd_f1); 4852 close(fd_f2); 4853 close(fd_f3); 4854 sched_yield(); 4855 return; 4856 fail_log: 4857 (*errors)++; 4858 printf("%s", bpf_vlog); 4859 goto close_fds; 4860 } 4861 4862 static bool is_admin(void) 4863 { 4864 cap_t caps; 4865 cap_flag_value_t sysadmin = CAP_CLEAR; 4866 const cap_value_t cap_val = CAP_SYS_ADMIN; 4867 4868 #ifdef CAP_IS_SUPPORTED 4869 if (!CAP_IS_SUPPORTED(CAP_SETFCAP)) { 4870 perror("cap_get_flag"); 4871 return false; 4872 } 4873 #endif 4874 caps = cap_get_proc(); 4875 if (!caps) { 4876 perror("cap_get_proc"); 4877 return false; 4878 } 4879 if (cap_get_flag(caps, cap_val, CAP_EFFECTIVE, &sysadmin)) 4880 perror("cap_get_flag"); 4881 if (cap_free(caps)) 4882 perror("cap_free"); 4883 return (sysadmin == CAP_SET); 4884 } 4885 4886 static int set_admin(bool admin) 4887 { 4888 cap_t caps; 4889 const cap_value_t cap_val = CAP_SYS_ADMIN; 4890 int ret = -1; 4891 4892 caps = cap_get_proc(); 4893 if (!caps) { 4894 perror("cap_get_proc"); 4895 return -1; 4896 } 4897 if (cap_set_flag(caps, CAP_EFFECTIVE, 1, &cap_val, 4898 admin ? CAP_SET : CAP_CLEAR)) { 4899 perror("cap_set_flag"); 4900 goto out; 4901 } 4902 if (cap_set_proc(caps)) { 4903 perror("cap_set_proc"); 4904 goto out; 4905 } 4906 ret = 0; 4907 out: 4908 if (cap_free(caps)) 4909 perror("cap_free"); 4910 return ret; 4911 } 4912 4913 static int do_test(bool unpriv, unsigned int from, unsigned int to) 4914 { 4915 int i, passes = 0, errors = 0; 4916 4917 for (i = from; i < to; i++) { 4918 struct bpf_test *test = &tests[i]; 4919 4920 /* Program types that are not supported by non-root we 4921 * skip right away. 4922 */ 4923 if (!test->prog_type) { 4924 if (!unpriv) 4925 set_admin(false); 4926 printf("#%d/u %s ", i, test->descr); 4927 do_test_single(test, true, &passes, &errors); 4928 if (!unpriv) 4929 set_admin(true); 4930 } 4931 4932 if (!unpriv) { 4933 printf("#%d/p %s ", i, test->descr); 4934 do_test_single(test, false, &passes, &errors); 4935 } 4936 } 4937 4938 printf("Summary: %d PASSED, %d FAILED\n", passes, errors); 4939 return errors ? -errors : 0; 4940 } 4941 4942 int main(int argc, char **argv) 4943 { 4944 struct rlimit rinf = { RLIM_INFINITY, RLIM_INFINITY }; 4945 struct rlimit rlim = { 1 << 20, 1 << 20 }; 4946 unsigned int from = 0, to = ARRAY_SIZE(tests); 4947 bool unpriv = !is_admin(); 4948 4949 if (argc == 3) { 4950 unsigned int l = atoi(argv[argc - 2]); 4951 unsigned int u = atoi(argv[argc - 1]); 4952 4953 if (l < to && u < to) { 4954 from = l; 4955 to = u + 1; 4956 } 4957 } else if (argc == 2) { 4958 unsigned int t = atoi(argv[argc - 1]); 4959 4960 if (t < to) { 4961 from = t; 4962 to = t + 1; 4963 } 4964 } 4965 4966 setrlimit(RLIMIT_MEMLOCK, unpriv ? &rlim : &rinf); 4967 return do_test(unpriv, from, to); 4968 } 4969
