======================================
| [ 37.740097][ T309] veth2: entered promiscuous mode
| [ 45.225360][ C1] ------------[ cut here ]------------
| [ 45.225806][ C1] kernel BUG at net/core/skbuff.c:2813!
| [ 45.226075][ C1] invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
[ 45.226702][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 45.227203][ C1] RIP: 0010:__pskb_pull_tail (net/core/skbuff.c:2813 (discriminator 1))
[ 45.227499][ C1] Code: e9 52 f7 ff ff 48 8b 7c 24 38 be 02 00 00 00 e8 8e 9c ff ff 48 83 c4 58 31 c0 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc 90 <0f> 0b 48 c7 44 24 38 00 00 00 00 e9 dc fa ff ff 84 c9 0f 84 4b f9
All code
========
0: e9 52 f7 ff ff jmp 0xfffffffffffff757
5: 48 8b 7c 24 38 mov 0x38(%rsp),%rdi
a: be 02 00 00 00 mov $0x2,%esi
f: e8 8e 9c ff ff call 0xffffffffffff9ca2
14: 48 83 c4 58 add $0x58,%rsp
18: 31 c0 xor %eax,%eax
1a: 5b pop %rbx
1b: 41 5c pop %r12
1d: 41 5d pop %r13
1f: 41 5e pop %r14
21: 41 5f pop %r15
23: 5d pop %rbp
24: c3 ret
25: cc int3
26: cc int3
27: cc int3
28: cc int3
29: 90 nop
2a:* 0f 0b ud2 <-- trapping instruction
2c: 48 c7 44 24 38 00 00 movq $0x0,0x38(%rsp)
33: 00 00
35: e9 dc fa ff ff jmp 0xfffffffffffffb16
3a: 84 c9 test %cl,%cl
3c: 0f .byte 0xf
3d: 84 4b f9 test %cl,-0x7(%rbx)
Code starting with the faulting instruction
===========================================
0: 0f 0b ud2
2: 48 c7 44 24 38 00 00 movq $0x0,0x38(%rsp)
9: 00 00
b: e9 dc fa ff ff jmp 0xfffffffffffffaec
10: 84 c9 test %cl,%cl
12: 0f .byte 0xf
13: 84 4b f9 test %cl,-0x7(%rbx)
[ 45.228283][ C1] RSP: 0018:ffffc900001c89c8 EFLAGS: 00010282
[ 45.228560][ C1] RAX: 00000000fffffff2 RBX: ffff888003c93234 RCX: 0000000000000004
[ 45.228887][ C1] RDX: dffffc0000000000 RSI: 1ffff110008b3301 RDI: ffff888004599808
[ 45.229222][ C1] RBP: ffffc900001c8a48 R08: 0000000000000008 R09: ffff888003c9327c
[ 45.229579][ C1] R10: ffff888003c93280 R11: 0000000000000000 R12: ffff888003c931c0
[ 45.229932][ C1] R13: ffff8880045984a0 R14: 0000000000000001 R15: ffffffff96bcddb0
[ 45.230272][ C1] FS: 00007fa696ce9300(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[ 45.230683][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 45.230973][ C1] CR2: 000000000041aad0 CR3: 0000000006020004 CR4: 0000000000770ef0
[ 45.231328][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 45.231665][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 45.231996][ C1] PKRU: 55555554
[ 45.232133][ C1] Call Trace:
[ 45.232315][ C1]
[ 45.232429][ C1] ? die (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:434 arch/x86/kernel/dumpstack.c:447)
[ 45.232611][ C1] ? do_trap (arch/x86/kernel/traps.c:113 arch/x86/kernel/traps.c:154)
[ 45.232780][ C1] ? __pskb_pull_tail (net/core/skbuff.c:2813 (discriminator 1))
[ 45.233021][ C1] ? do_error_trap (./arch/x86/include/asm/traps.h:58 arch/x86/kernel/traps.c:175)
[ 45.233246][ C1] ? __pskb_pull_tail (net/core/skbuff.c:2813 (discriminator 1))
[ 45.233477][ C1] ? __pskb_pull_tail (net/core/skbuff.c:2813 (discriminator 1))
[ 45.233718][ C1] ? handle_invalid_op (arch/x86/kernel/traps.c:213)
[ 45.233958][ C1] ? __pskb_pull_tail (net/core/skbuff.c:2813 (discriminator 1))
[ 45.234193][ C1] ? exc_invalid_op (arch/x86/kernel/traps.c:265)
[ 45.234427][ C1] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568)
[ 45.234677][ C1] ? __pskb_pull_tail (net/core/skbuff.c:2813 (discriminator 1))
[ 45.234929][ C1] ? __pskb_pull_tail (net/core/skbuff.c:2813)
[ 45.235168][ C1] ? raw_v4_input (net/ipv4/raw.c:165)
[ 45.235416][ C1] icmp_rcv (./include/linux/skbuff.h:2731 ./include/linux/skbuff.h:2739 ./include/linux/skbuff.h:2744 net/ipv4/icmp.c:1216)
[ 45.235606][ C1] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 5))
[ 45.235855][ C1] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234)
[ 45.236099][ C1] ip_local_deliver (./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:254)
[ 45.236338][ C1] ? __pfx_ip_local_deliver (net/ipv4/ip_input.c:243)
[ 45.236572][ C1] ? ip_rcv_finish_core.constprop.0 (./include/net/net_namespace.h:383 ./include/linux/netdevice.h:2654 net/ipv4/ip_input.c:372)
[ 45.236834][ C1] ip_rcv (./include/net/dst.h:460 net/ipv4/ip_input.c:449 ./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:569)
[ 45.237004][ C1] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562)
[ 45.237221][ C1] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756)
[ 45.237449][ C1] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:6051)
[ 45.237685][ C1] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562)
[ 45.237906][ C1] __netif_receive_skb_one_core (net/core/dev.c:5610 (discriminator 4))
[ 45.238197][ C1] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5603)
[ 45.238500][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725)
[ 45.238724][ C1] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:6051)
[ 45.238958][ C1] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:6053)
[ 45.239187][ C1] ? find_held_lock (kernel/locking/lockdep.c:5244)
[ 45.239421][ C1] __napi_poll.constprop.0 (net/core/dev.c:6703)
[ 45.239658][ C1] net_rx_action (net/core/dev.c:6772 net/core/dev.c:6886)
[ 45.239888][ C1] ? __pfx_net_rx_action (net/core/dev.c:6850)
[ 45.240128][ C1] ? hlock_class (kernel/locking/lockdep.c:223)
[ 45.240359][ C1] ? mark_held_locks (kernel/locking/lockdep.c:4274)
[ 45.240598][ C1] __do_softirq (kernel/softirq.c:553)
[ 45.240821][ C1] ? netif_rx (./include/linux/bottom_half.h:33 net/core/dev.c:5195 net/core/dev.c:5184)
[ 45.240933][ C1] do_softirq (kernel/softirq.c:454 kernel/softirq.c:441)
[ 45.241056][ C1]
[ 45.241130][ C1]
[ 45.241203][ C1] __local_bh_enable_ip (kernel/softirq.c:381)
[ 45.241350][ C1] netif_rx (net/core/dev.c:5197)
[ 45.241458][ C1] dev_loopback_xmit (net/core/dev.c:3910)
[ 45.241604][ C1] ip_mc_finish_output (net/ipv4/ip_output.c:363)
[ 45.241753][ C1] ip_mc_output (./include/linux/netfilter.h:315 ./include/linux/netfilter.h:308 net/ipv4/ip_output.c:399)
[ 45.241897][ C1] ip_push_pending_frames (./include/net/dst.h:450 ./include/net/dst.h:448 net/ipv4/ip_output.c:129 net/ipv4/ip_output.c:1496 net/ipv4/ip_output.c:1516)
[ 45.242048][ C1] raw_sendmsg (net/ipv4/raw.c:648)
[ 45.242192][ C1] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825)
[ 45.242339][ C1] ? __pfx_raw_sendmsg (net/ipv4/raw.c:476)
[ 45.242484][ C1] ? __lock_acquire (kernel/locking/lockdep.c:5137)
[ 45.242632][ C1] ? find_held_lock (kernel/locking/lockdep.c:5244)
[ 45.242785][ C1] ? __lock_release (kernel/locking/lockdep.c:5430)
[ 45.242943][ C1] ? __might_fault (mm/memory.c:6080 mm/memory.c:6073)
[ 45.243102][ C1] ? __pfx___lock_release (kernel/locking/lockdep.c:5406)
[ 45.243249][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725)
[ 45.243391][ C1] ? __might_fault (mm/memory.c:6080 mm/memory.c:6073)
[ 45.243535][ C1] ? __might_fault (mm/memory.c:6080 mm/memory.c:6073)
[ 45.243696][ C1] ? __sys_sendto (net/socket.c:730 net/socket.c:745 net/socket.c:2191)
[ 45.243928][ C1] __sys_sendto (net/socket.c:730 net/socket.c:745 net/socket.c:2191)
[ 45.244162][ C1] ? __pfx___sys_sendto (net/socket.c:2161)
[ 45.244406][ C1] ? __lock_release (kernel/locking/lockdep.c:5430)
[ 45.244647][ C1] ? do_user_addr_fault (arch/x86/mm/fault.c:1436)
[ 45.244898][ C1] ? __up_read (./arch/x86/include/asm/atomic64_64.h:79 ./include/linux/atomic/atomic-arch-fallback.h:2735 ./include/linux/atomic/atomic-long.h:184 ./include/linux/atomic/atomic-instrumented.h:3289 kernel/locking/rwsem.c:1347)
[ 45.245137][ C1] ? __pfx_find_vma (mm/mmap.c:1883)
[ 45.245371][ C1] ? __pfx___up_read (kernel/locking/rwsem.c:1339)
[ 45.245601][ C1] ? do_user_addr_fault (arch/x86/mm/fault.c:1436)
[ 45.245821][ C1] __x64_sys_sendto (net/socket.c:2199)
[ 45.246039][ C1] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359)
[ 45.246292][ C1] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
[ 45.246483][ C1] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129)
[ 45.246784][ C1] RIP: 0033:0x7fa696fbf85a
[ 45.247025][ C1] 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
[ 45.247828][ C1] RSP: 002b:00007ffd714bff78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[ 45.248150][ C1] RAX: ffffffffffffffda RBX: 0000000000000038 RCX: 00007fa696fbf85a
[ 45.248522][ C1] RDX: 0000000000000040 RSI: 0000000000747340 RDI: 0000000000000005
[ 45.248878][ C1] RBP: 00007ffd714bffd0 R08: 00000000004185e0 R09: 0000000000000010
[ 45.249236][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000054
Finger prints:
__pskb_pull_tail:icmp_rcv:ip_protocol_deliver_rcu:ip_local_deliver_finish