======================================
| [ 5.078389] eth0: entered promiscuous mode
| [ 7.189566] ------------[ cut here ]------------
| [ 7.189621] kernel BUG at net/core/skbuff.c:3505!
| [ 7.189663] invalid opcode: 0000 [#1] PREEMPT SMP NOPTI
[ 7.189749] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 7.189823] RIP: 0010:__skb_checksum (net/core/skbuff.c:3505 (discriminator 1))
[ 7.189863] Code: 89 5c 24 04 44 89 d9 44 89 ff 44 89 ea ff d0 0f 1f 00 44 8b 5c 24 04 41 89 c7 eb b6 ff d0 0f 1f 00 41 89 c1 e9 71 fd ff ff 90 <0f> 0b 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90
All code
========
0: 89 5c 24 04 mov %ebx,0x4(%rsp)
4: 44 89 d9 mov %r11d,%ecx
7: 44 89 ff mov %r15d,%edi
a: 44 89 ea mov %r13d,%edx
d: ff d0 call *%rax
f: 0f 1f 00 nopl (%rax)
12: 44 8b 5c 24 04 mov 0x4(%rsp),%r11d
17: 41 89 c7 mov %eax,%r15d
1a: eb b6 jmp 0xffffffffffffffd2
1c: ff d0 call *%rax
1e: 0f 1f 00 nopl (%rax)
21: 41 89 c1 mov %eax,%r9d
24: e9 71 fd ff ff jmp 0xfffffffffffffd9a
29: 90 nop
2a:* 0f 0b ud2 <-- trapping instruction
2c: 66 66 2e 0f 1f 84 00 data16 cs nopw 0x0(%rax,%rax,1)
33: 00 00 00 00
37: 90 nop
38: 90 nop
39: 90 nop
3a: 90 nop
3b: 90 nop
3c: 90 nop
3d: 90 nop
3e: 90 nop
3f: 90 nop
Code starting with the faulting instruction
===========================================
0: 0f 0b ud2
2: 66 66 2e 0f 1f 84 00 data16 cs nopw 0x0(%rax,%rax,1)
9: 00 00 00 00
d: 90 nop
e: 90 nop
f: 90 nop
10: 90 nop
11: 90 nop
12: 90 nop
13: 90 nop
14: 90 nop
15: 90 nop
[ 7.189977] RSP: 0018:ffffa91240114db8 EFLAGS: 00010202
[ 7.190017] RAX: 0000000000000040 RBX: 0000000000000000 RCX: 0000000000000000
[ 7.190070] RDX: ffff8f6181f5ca00 RSI: ffff8f6181f5c900 RDI: 0000000000000100
[ 7.190123] RBP: ffffa91240114e10 R08: ffffa91240114e10 R09: 0000000000000000
[ 7.190176] R10: 0000000000000000 R11: 0000000000000001 R12: ffff8f6184808000
[ 7.190228] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[ 7.190276] FS: 00007fb247c6e300(0000) GS:ffff8f61bed00000(0000) knlGS:0000000000000000
[ 7.190330] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7.190375] CR2: 00007fb247efd840 CR3: 00000000021ba004 CR4: 0000000000770ef0
[ 7.190430] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 7.190482] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 7.190535] PKRU: 55555554
[ 7.190550] Call Trace:
[ 7.190569]
[ 7.190587] ? die (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:434 arch/x86/kernel/dumpstack.c:447)
[ 7.190619] ? do_trap (arch/x86/kernel/traps.c:113 arch/x86/kernel/traps.c:154)
[ 7.190648] ? __skb_checksum (net/core/skbuff.c:3505 (discriminator 1))
[ 7.190679] ? do_error_trap (./arch/x86/include/asm/traps.h:58 arch/x86/kernel/traps.c:175)
[ 7.190708] ? __skb_checksum (net/core/skbuff.c:3505 (discriminator 1))
[ 7.190732] ? exc_invalid_op (arch/x86/kernel/traps.c:265)
[ 7.190761] ? __skb_checksum (net/core/skbuff.c:3505 (discriminator 1))
[ 7.190789] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568)
[ 7.190820] ? __skb_checksum (net/core/skbuff.c:3505 (discriminator 1))
[ 7.190848] ? skb_release_data (net/core/skbuff.c:1153)
[ 7.190877] __skb_checksum_complete (./arch/x86/include/asm/checksum_64.h:170 ./arch/x86/include/asm/checksum_64.h:180 net/core/skbuff.c:3643)
[ 7.190914] ? __pfx_csum_partial_ext (./include/net/checksum.h:120)
[ 7.190951] ? __pfx_csum_block_add_ext (./include/net/checksum.h:103)
[ 7.190989] icmp_rcv (./include/linux/skbuff.h:4567 net/ipv4/icmp.c:1213)
[ 7.191020] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 5))
[ 7.191059] ip_local_deliver (./include/linux/rcupdate.h:782 net/ipv4/ip_input.c:234 ./include/linux/netfilter.h:422 net/ipv4/ip_input.c:254)
[ 7.191086] __netif_receive_skb_one_core (net/core/dev.c:5610 (discriminator 4))
[ 7.191125] process_backlog (./include/linux/rcupdate.h:782 net/core/dev.c:6053)
[ 7.191153] __napi_poll (net/core/dev.c:6703)
[ 7.191182] net_rx_action (net/core/dev.c:6774 net/core/dev.c:6886)
[ 7.191212] __do_softirq (kernel/softirq.c:553)
[ 7.191243] do_softirq (kernel/softirq.c:454 kernel/softirq.c:441)
[ 7.191275]
[ 7.191290]
[ 7.191306] __local_bh_enable_ip (kernel/softirq.c:381)
[ 7.191335] __neigh_event_send (./arch/x86/include/asm/jump_label.h:27 ./include/linux/jump_label.h:207 ./include/trace/events/neigh.h:237 net/core/neighbour.c:1246)
[ 7.191369] neigh_resolve_output (net/core/neighbour.c:1547)
[ 7.191408] ip_finish_output2 (./include/net/neighbour.h:542 net/ipv4/ip_output.c:235)
[ 7.191441] ? __ip_finish_output (./include/linux/skbuff.h:4942 net/ipv4/ip_output.c:307)
[ 7.191479] ip_push_pending_frames (net/ipv4/ip_output.c:1497 net/ipv4/ip_output.c:1516)
[ 7.191518] raw_sendmsg (net/ipv4/raw.c:648)
[ 7.191552] ? find_next_iomem_res (kernel/resource.c:371)
[ 7.191595] ? __sys_sendto (net/socket.c:730 net/socket.c:745 net/socket.c:2191)
[ 7.191627] __sys_sendto (net/socket.c:730 net/socket.c:745 net/socket.c:2191)
[ 7.191659] ? handle_mm_fault (mm/memory.c:5330 mm/memory.c:5486)
[ 7.191693] ? do_user_addr_fault (./include/linux/rcupdate.h:782 ./include/linux/mm.h:688 arch/x86/mm/fault.c:1357)
[ 7.191733] __x64_sys_sendto (net/socket.c:2203 net/socket.c:2199 net/socket.c:2199)
[ 7.191764] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
[ 7.191795] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129)
[ 7.191837] RIP: 0033:0x7fb247f4485a
[ 7.191867] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 15 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 7e c3 0f 1f 44 00 00 41 54 48 83 ec 30 44 89
All code
========
0: d8 64 89 02 fsubs 0x2(%rcx,%rcx,4)
4: 48 c7 c0 ff ff ff ff mov $0xffffffffffffffff,%rax
b: eb b8 jmp 0xffffffffffffffc5
d: 0f 1f 00 nopl (%rax)
10: f3 0f 1e fa endbr64
14: 41 89 ca mov %ecx,%r10d
17: 64 8b 04 25 18 00 00 mov %fs:0x18,%eax
1e: 00
1f: 85 c0 test %eax,%eax
21: 75 15 jne 0x38
23: b8 2c 00 00 00 mov $0x2c,%eax
28: 0f 05 syscall
2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction
30: 77 7e ja 0xb0
32: c3 ret
33: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
38: 41 54 push %r12
3a: 48 83 ec 30 sub $0x30,%rsp
3e: 44 rex.R
3f: 89 .byte 0x89
Code starting with the faulting instruction
===========================================
0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax
6: 77 7e ja 0x86
8: c3 ret
9: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
e: 41 54 push %r12
10: 48 83 ec 30 sub $0x30,%rsp
14: 44 rex.R
15: 89 .byte 0x89
[ 7.191982] RSP: 002b:00007ffe8f6c3c58 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[ 7.192033] RAX: ffffffffffffffda RBX: 0000000000000038 RCX: 00007fb247f4485a
[ 7.192083] RDX: 0000000000000040 RSI: 00000000018b6340 RDI: 0000000000000005
[ 7.192135] RBP: 00007ffe8f6c3cb0 R08: 00000000004185e0 R09: 0000000000000010
[ 7.192186] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000054
Finger prints:
__skb_checksum:__skb_checksum_complete:icmp_rcv:ip_protocol_deliver_rcu