1 FILE: net/llc/llc_sap.c 2 3 ------------[ cut here ]------------ 4 kernel BUG at ./include/linux/skbuff.h:2389! 5 invalid opcode: 0000 [#1] SMP KASAN 6 Dumping ftrace buffer: 7 (ftrace buffer empty) 8 Modules linked in: 9 CPU: 2 PID: 10793 Comm: syz-executor0 Not tainted 4.10.0-rc8+ #201 10 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 11 task: ffff88006aeb1700 task.stack: ffff880069b08000 12 RIP: 0010:skb_set_owner_r include/linux/skbuff.h:2389 [inline] 13 RIP: 0010:__sock_queue_rcv_skb+0x8c0/0xda0 net/core/sock.c:425 14 RSP: 0018:ffff88006de06b58 EFLAGS: 00010206 15 RAX: ffff88006aeb1700 RBX: ffff8800581dc170 RCX: 0000000000000000 16 RDX: 0000000000000100 RSI: 1ffff1000d5fcb7b RDI: ffff88006afe5be0 17 RBP: ffff88006de06dc0 R08: 0000000000000002 R09: 0000000000000001 18 R10: 0000000000000000 R11: dffffc0000000000 R12: ffff88006afe5bc0 19 R13: ffff88006de06d98 R14: ffff8800581dc198 R15: ffff88006afe5c20 20 FS: 00007f06a3bd9700(0000) GS:ffff88006de00000(0000) knlGS:0000000000000000 21 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 22 CR2: 0000000020007000 CR3: 000000006a280000 CR4: 00000000000006e0 23 Call Trace: 24 <IRQ> 25 sock_queue_rcv_skb+0x3a/0x50 net/core/sock.c:451 26 PF_BRIDGE: RTM_DELNEIGH with invalid address 27 llc_sap_state_process+0x3e3/0x4e0 net/llc/llc_sap.c:220 28 llc_sap_rcv net/llc/llc_sap.c:294 [inline] 29 llc_sap_handler+0x695/0x1320 net/llc/llc_sap.c:434 30 llc_rcv+0x6da/0xed0 net/llc/llc_input.c:208 31 __netif_receive_skb_core+0x1ae5/0x3400 net/core/dev.c:4190 32 __netif_receive_skb+0x2a/0x170 net/core/dev.c:4228 33 process_backlog+0xe5/0x6c0 net/core/dev.c:4839 34 napi_poll net/core/dev.c:5202 [inline] 35 net_rx_action+0xe70/0x1900 net/core/dev.c:5267 36 __do_softirq+0x2fb/0xb7d kernel/softirq.c:284 37 do_softirq_own_stack+0x1c/0x30 arch/x86/entry/entry_64.S:902 38 </IRQ> 39 do_softirq.part.17+0x1e8/0x230 kernel/softirq.c:328 40 do_softirq kernel/softirq.c:176 [inline] 41 __local_bh_enable_ip+0x1f2/0x200 kernel/softirq.c:181 42 local_bh_enable include/linux/bottom_half.h:31 [inline] 43 rcu_read_unlock_bh include/linux/rcupdate.h:971 [inline] 44 __dev_queue_xmit+0xd87/0x2860 net/core/dev.c:3399 45 dev_queue_xmit+0x17/0x20 net/core/dev.c:3405 46 llc_build_and_send_ui_pkt+0x240/0x330 net/llc/llc_output.c:74 47 llc_ui_sendmsg+0x98d/0x1430 net/llc/af_llc.c:928 48 sock_sendmsg_nosec net/socket.c:635 [inline] 49 sock_sendmsg+0xca/0x110 net/socket.c:645 50 ___sys_sendmsg+0x9d2/0xae0 net/socket.c:1985 51 __sys_sendmsg+0x138/0x320 net/socket.c:2019 52 SYSC_sendmsg net/socket.c:2030 [inline] 53 SyS_sendmsg+0x2d/0x50 net/socket.c:2026 54 entry_SYSCALL_64_fastpath+0x1f/0xc2 55
