1 FILE: net/ipv4/netfilter/ipt_CLUSTERIP.c 2 3 ------------[ cut here ]------------ 4 proc_dir_entry 'ipt_CLUSTERIP/172.20.0.170' already registered 5 WARNING: CPU: 1 PID: 4074 at fs/proc/generic.c:330 proc_register+0x2a4/0x370 fs/proc/generic.c:329 6 Kernel panic - not syncing: panic_on_warn set ... 7 8 CPU: 1 PID: 4074 Comm: syzkaller105937 Not tainted 4.15.0+ #221 9 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 10 Call Trace: 11 __dump_stack lib/dump_stack.c:17 [inline] 12 dump_stack+0x194/0x257 lib/dump_stack.c:53 13 panic+0x1e4/0x41c kernel/panic.c:183 14 __warn+0x1dc/0x200 kernel/panic.c:547 15 report_bug+0x211/0x2d0 lib/bug.c:184 16 fixup_bug.part.11+0x37/0x80 arch/x86/kernel/traps.c:178 17 fixup_bug arch/x86/kernel/traps.c:247 [inline] 18 do_error_trap+0x2d7/0x3e0 arch/x86/kernel/traps.c:296 19 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:315 20 invalid_op+0x22/0x40 arch/x86/entry/entry_64.S:1097 21 RIP: 0010:proc_register+0x2a4/0x370 fs/proc/generic.c:329 22 RSP: 0018:ffff8801da886e20 EFLAGS: 00010286 23 RAX: dffffc0000000008 RBX: ffff8801d21cc7b8 RCX: ffffffff815a57ae 24 RDX: 0000000000000000 RSI: 1ffff1003b510d74 RDI: 1ffff1003b510d49 25 RBP: ffff8801da886e70 R08: 1ffff1003b510d0b R09: 0000000000000000 26 R10: ffff8801da886cd8 R11: 0000000000000000 R12: ffff8801cbf66440 27 R13: dffffc0000000000 R14: ffff8801ca2fa348 R15: ffff8801cbf66501 28 proc_create_data+0xf8/0x180 fs/proc/generic.c:494 29 clusterip_config_init net/ipv4/netfilter/ipt_CLUSTERIP.c:250 [inline] 30 clusterip_tg_check+0xf9c/0x16d0 net/ipv4/netfilter/ipt_CLUSTERIP.c:488 31 xt_check_target+0x22c/0x7d0 net/netfilter/x_tables.c:850 32 check_target net/ipv4/netfilter/ip_tables.c:513 [inline] 33 find_check_entry.isra.8+0x8c8/0xcb0 net/ipv4/netfilter/ip_tables.c:554 34 translate_table+0xed1/0x1610 net/ipv4/netfilter/ip_tables.c:725 35 do_replace net/ipv4/netfilter/ip_tables.c:1141 [inline] 36 do_ipt_set_ctl+0x370/0x5f0 net/ipv4/netfilter/ip_tables.c:1675 37 nf_sockopt net/netfilter/nf_sockopt.c:106 [inline] 38 nf_setsockopt+0x67/0xc0 net/netfilter/nf_sockopt.c:115 39 ip_setsockopt+0x97/0xa0 net/ipv4/ip_sockglue.c:1259 40 sctp_setsockopt+0x2b6/0x61d0 net/sctp/socket.c:4104 41 sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2975 42 SYSC_setsockopt net/socket.c:1849 [inline] 43 SyS_setsockopt+0x189/0x360 net/socket.c:1828 44 entry_SYSCALL_64_fastpath+0x29/0xa0 45 RIP: 0033:0x44afa9 46 RSP: 002b:00007f43f70edce8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 47 RAX: ffffffffffffffda RBX: 00000000006e0c3c RCX: 000000000044afa9 48 RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000004 49 RBP: 00000000006e0c38 R08: 0000000000000348 R09: 0000000000000000 50 R10: 0000000020013c90 R11: 0000000000000246 R12: 0000000000000000 51 R13: 00007ffe194fe84f R14: 00007f43f70ee9c0 R15: 0000000000000005 52
