======================================
| [ 32.945817][ T50] br1: port 3(veth2) entered forwarding state
| [ 35.235202][ C3] ------------[ cut here ]------------
| [ 35.235518][ C3] kernel BUG at net/core/skbuff.c:3505!
| [ 35.235727][ C3] invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
[ 35.236183][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 35.236553][ C3] RIP: 0010:__skb_checksum (net/core/skbuff.c:3505 (discriminator 1))
[ 35.236724][ C3] Code: 44 89 14 24 ff d0 0f 1f 00 4c 8b 44 24 08 44 8b 14 24 41 89 c1 eb a5 89 e8 e9 2d fe ff ff 41 ff d5 0f 1f 00 e9 1f fa ff ff 90 <0f> 0b 48 8b 7c 24 10 89 54 24 48 48 89 44 24 40 e8 17 a6 91 fe 8b
All code
========
0: 44 89 14 24 mov %r10d,(%rsp)
4: ff d0 call *%rax
6: 0f 1f 00 nopl (%rax)
9: 4c 8b 44 24 08 mov 0x8(%rsp),%r8
e: 44 8b 14 24 mov (%rsp),%r10d
12: 41 89 c1 mov %eax,%r9d
15: eb a5 jmp 0xffffffffffffffbc
17: 89 e8 mov %ebp,%eax
19: e9 2d fe ff ff jmp 0xfffffffffffffe4b
1e: 41 ff d5 call *%r13
21: 0f 1f 00 nopl (%rax)
24: e9 1f fa ff ff jmp 0xfffffffffffffa48
29: 90 nop
2a:* 0f 0b ud2 <-- trapping instruction
2c: 48 8b 7c 24 10 mov 0x10(%rsp),%rdi
31: 89 54 24 48 mov %edx,0x48(%rsp)
35: 48 89 44 24 40 mov %rax,0x40(%rsp)
3a: e8 17 a6 91 fe call 0xfffffffffe91a656
3f: 8b .byte 0x8b
Code starting with the faulting instruction
===========================================
0: 0f 0b ud2
2: 48 8b 7c 24 10 mov 0x10(%rsp),%rdi
7: 89 54 24 48 mov %edx,0x48(%rsp)
b: 48 89 44 24 40 mov %rax,0x40(%rsp)
10: e8 17 a6 91 fe call 0xfffffffffe91a62c
15: 8b .byte 0x8b
[ 35.237288][ C3] RSP: 0018:ffffc90000278910 EFLAGS: 00010202
[ 35.237494][ C3] RAX: 000000000000f270 RBX: 0000000000000008 RCX: 1ffff11005e8ba99
[ 35.237743][ C3] RDX: 000000000000007a RSI: dffffc0000000000 RDI: ffff88802f45d4c8
[ 35.237990][ C3] RBP: 000000000000f270 R08: 0000000000000008 R09: fffffbfff425c5ea
[ 35.238236][ C3] R10: ffffffffa12e2f57 R11: dffffc0000000000 R12: 0000000000000008
[ 35.238476][ C3] R13: 0000000000000000 R14: ffffc900002789d0 R15: ffff888009cb9b08
[ 35.238721][ C3] FS: 0000000000000000(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[ 35.239001][ C3] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 35.239204][ C3] CR2: 00007fcae9589270 CR3: 0000000006534001 CR4: 0000000000770ef0
[ 35.239447][ C3] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 35.239697][ C3] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 35.239937][ C3] PKRU: 55555554
[ 35.240059][ C3] Call Trace:
[ 35.240182][ C3]
[ 35.240262][ C3] ? die (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:434 arch/x86/kernel/dumpstack.c:447)
[ 35.240388][ C3] ? do_trap (arch/x86/kernel/traps.c:113 arch/x86/kernel/traps.c:154)
[ 35.240512][ C3] ? __skb_checksum (net/core/skbuff.c:3505 (discriminator 1))
[ 35.240677][ C3] ? do_error_trap (./arch/x86/include/asm/traps.h:58 arch/x86/kernel/traps.c:175)
[ 35.240842][ C3] ? __skb_checksum (net/core/skbuff.c:3505 (discriminator 1))
[ 35.241002][ C3] ? __skb_checksum (net/core/skbuff.c:3505 (discriminator 1))
[ 35.241168][ C3] ? handle_invalid_op (arch/x86/kernel/traps.c:213)
[ 35.241331][ C3] ? __skb_checksum (net/core/skbuff.c:3505 (discriminator 1))
[ 35.241488][ C3] ? exc_invalid_op (arch/x86/kernel/traps.c:265)
[ 35.241651][ C3] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568)
[ 35.241817][ C3] ? __skb_checksum (net/core/skbuff.c:3505 (discriminator 1))
[ 35.241981][ C3] __skb_checksum_complete (net/core/skbuff.c:3643)
[ 35.242144][ C3] ? __pfx___skb_checksum_complete (net/core/skbuff.c:3637)
[ 35.242355][ C3] ? __pfx_csum_partial_ext (./include/net/checksum.h:120)
[ 35.242514][ C3] ? __pfx_csum_block_add_ext (./include/net/checksum.h:103)
[ 35.242680][ C3] icmp_rcv (./include/linux/skbuff.h:4567 net/ipv4/icmp.c:1213)
[ 35.242808][ C3] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 5))
[ 35.242967][ C3] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234)
[ 35.243125][ C3] ip_local_deliver (./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:254)
[ 35.243282][ C3] ? __pfx_ip_local_deliver (net/ipv4/ip_input.c:243)
[ 35.243444][ C3] ? ip_rcv_finish_core.constprop.0 (./include/linux/skbuff.h:1136 ./include/linux/skbuff.h:1188 net/ipv4/ip_input.c:390)
[ 35.243642][ C3] 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)
[ 35.243764][ C3] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562)
[ 35.243923][ C3] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756)
[ 35.244082][ C3] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:6051)
[ 35.244242][ C3] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562)
[ 35.244401][ C3] __netif_receive_skb_one_core (net/core/dev.c:5610 (discriminator 4))
[ 35.244599][ C3] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5603)
[ 35.244798][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725)
[ 35.244955][ C3] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:6051)
[ 35.245125][ C3] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:6053)
[ 35.245288][ C3] __napi_poll.constprop.0 (net/core/dev.c:6703)
[ 35.245447][ C3] net_rx_action (net/core/dev.c:6772 net/core/dev.c:6886)
[ 35.245606][ C3] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3))
[ 35.245726][ C3] ? __pfx_net_rx_action (net/core/dev.c:6850)
[ 35.245883][ C3] ? hlock_class (kernel/locking/lockdep.c:223)
[ 35.246044][ C3] ? mark_held_locks (kernel/locking/lockdep.c:4274)
[ 35.246205][ C3] __do_softirq (kernel/softirq.c:553)
[ 35.246367][ C3] irq_exit_rcu (kernel/softirq.c:427 kernel/softirq.c:632 kernel/softirq.c:644)
[ 35.246487][ C3] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1076 (discriminator 14))
[ 35.246646][ C3]
[ 35.246727][ C3]
[ 35.246808][ C3] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:649)
[ 35.247008][ C3] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194)
[ 35.247212][ C3] Code: 10 e8 f1 92 a3 fd 48 89 ef e8 19 ff a3 fd 81 e3 00 02 00 00 75 1d 9c 58 f6 c4 02 75 29 48 85 db 74 01 fb 65 ff 0d 15 25 99 60 <74> 0e 5b 5d c3 cc cc cc cc e8 3f bb c5 fd eb dc 0f 1f 44 00 00 5b
All code
========
0: 10 e8 adc %ch,%al
2: f1 int1
3: 92 xchg %eax,%edx
4: a3 fd 48 89 ef e8 19 movabs %eax,0xa3ff19e8ef8948fd
b: ff a3
d: fd std
e: 81 e3 00 02 00 00 and $0x200,%ebx
14: 75 1d jne 0x33
16: 9c pushf
17: 58 pop %rax
18: f6 c4 02 test $0x2,%ah
1b: 75 29 jne 0x46
1d: 48 85 db test %rbx,%rbx
20: 74 01 je 0x23
22: fb sti
23: 65 ff 0d 15 25 99 60 decl %gs:0x60992515(%rip) # 0x6099253f
2a:* 74 0e je 0x3a <-- trapping instruction
2c: 5b pop %rbx
2d: 5d pop %rbp
2e: c3 ret
2f: cc int3
30: cc int3
31: cc int3
32: cc int3
33: e8 3f bb c5 fd call 0xfffffffffdc5bb77
38: eb dc jmp 0x16
3a: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
3f: 5b pop %rbx
Code starting with the faulting instruction
===========================================
0: 74 0e je 0x10
2: 5b pop %rbx
3: 5d pop %rbp
4: c3 ret
5: cc int3
6: cc int3
7: cc int3
8: cc int3
9: e8 3f bb c5 fd call 0xfffffffffdc5bb4d
e: eb dc jmp 0xffffffffffffffec
10: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
15: 5b pop %rbx
[ 35.247776][ C3] RSP: 0018:ffffc900006ffc98 EFLAGS: 00000286
[ 35.247977][ C3] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff4516bfe
[ 35.248213][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff9f6a8dc1
[ 35.248451][ C3] RBP: ffff888001041080 R08: 0000000000000001 R09: fffffbfff4514a71
[ 35.248688][ C3] R10: ffffffffa28a538f R11: 0000000000001000 R12: ffff8880063e9000
[ 35.248932][ C3] R13: 0000000000000000 R14: ffffc900006ffce8 R15: ffff888007a14000
[ 35.249187][ C3] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194)
[ 35.249388][ C3] qlist_free_all (mm/kasan/quarantine.c:174)
[ 35.249559][ C3] kasan_quarantine_reduce (./include/linux/srcu.h:285 mm/kasan/quarantine.c:287)
[ 35.249725][ C3] __kasan_slab_alloc (mm/kasan/common.c:322)
[ 35.249886][ C3] kmem_cache_alloc (./include/linux/kasan.h:201 mm/slub.c:3813 mm/slub.c:3860 mm/slub.c:3867)
[ 35.250047][ C3] getname_flags (fs/namei.c:140)
[ 35.250212][ C3] vfs_fstatat (fs/stat.c:304)
[ 35.250334][ C3] __do_sys_newfstatat (fs/stat.c:469)
[ 35.250493][ C3] ? __pfx___do_sys_newfstatat (fs/stat.c:464)
[ 35.250651][ C3] ? __x64_sys_openat (fs/open.c:1430)
[ 35.250813][ C3] ? __pfx___x64_sys_openat (fs/open.c:1430)
[ 35.250973][ C3] ? __pfx_do_faccessat (fs/open.c:463)
[ 35.251146][ C3] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359)
[ 35.251347][ C3] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
[ 35.251510][ C3] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129)
[ 35.251711][ C3] RIP: 0033:0x7fcae95b6eae
[ 35.251880][ C3] Code: 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 07 00 00 00 0f 1f 80 00 00 00 00 f3 0f 1e fa 41 89 ca b8 06 01 00 00 0f 05 <3d> 00 f0 ff ff 77 0b 31 c0 c3 0f 1f 84 00 00 00 00 00 f7 d8 89 05
All code
========
0: 48 89 f2 mov %rsi,%rdx
3: b9 00 01 00 00 mov $0x100,%ecx
8: 48 89 fe mov %rdi,%rsi
b: bf 9c ff ff ff mov $0xffffff9c,%edi
10: e9 07 00 00 00 jmp 0x1c
15: 0f 1f 80 00 00 00 00 nopl 0x0(%rax)
1c: f3 0f 1e fa endbr64
20: 41 89 ca mov %ecx,%r10d
23: b8 06 01 00 00 mov $0x106,%eax
28: 0f 05 syscall
2a:* 3d 00 f0 ff ff cmp $0xfffff000,%eax <-- trapping instruction
2f: 77 0b ja 0x3c
31: 31 c0 xor %eax,%eax
33: c3 ret
34: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1)
3b: 00
3c: f7 d8 neg %eax
3e: 89 .byte 0x89
3f: 05 .byte 0x5
Code starting with the faulting instruction
===========================================
0: 3d 00 f0 ff ff cmp $0xfffff000,%eax
5: 77 0b ja 0x12
7: 31 c0 xor %eax,%eax
9: c3 ret
a: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1)
11: 00
12: f7 d8 neg %eax
14: 89 .byte 0x89
15: 05 .byte 0x5
[ 35.252442][ C3] RSP: 002b:00007fff8a005568 EFLAGS: 00000246 ORIG_RAX: 0000000000000106
[ 35.252681][ C3] RAX: ffffffffffffffda RBX: 0000000000000012 RCX: 00007fcae95b6eae
[ 35.252924][ C3] RDX: 00007fff8a005640 RSI: 00007fff8a005570 RDI: 00000000ffffff9c
[ 35.253173][ C3] RBP: 00007fff8a005700 R08: 00000000ffffffff R09: 00007fff8a005570
[ 35.253412][ C3] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff8a005577
Finger prints:
__skb_checksum:__skb_checksum_complete:icmp_rcv:ip_protocol_deliver_rcu