====================================== | [ 32.059959][ T324] veth0: renamed from veth-hv-2 | [ 32.764520][ C3] ------------[ cut here ]------------ | [ 32.764875][ C3] kernel BUG at net/core/skbuff.c:3605! | [ 32.765070][ C3] invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 32.765513][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 32.765865][ C3] RIP: 0010:skb_copy_and_csum_bits (net/core/skbuff.c:3605 (discriminator 1)) [ 32.766074][ C3] Code: 89 c4 0f 84 70 fe ff ff 45 01 f7 48 01 dd 44 89 7c 24 0c e9 92 fa ff ff 90 0f 0b 90 e9 e2 fe ff ff 41 89 c4 e9 4f fe ff ff 90 <0f> 0b 48 c7 c7 c0 d2 89 9a 89 44 24 40 48 89 74 24 38 e8 68 60 8d All code ======== 0: 89 c4 mov %eax,%esp 2: 0f 84 70 fe ff ff je 0xfffffffffffffe78 8: 45 01 f7 add %r14d,%r15d b: 48 01 dd add %rbx,%rbp e: 44 89 7c 24 0c mov %r15d,0xc(%rsp) 13: e9 92 fa ff ff jmp 0xfffffffffffffaaa 18: 90 nop 19: 0f 0b ud2 1b: 90 nop 1c: e9 e2 fe ff ff jmp 0xffffffffffffff03 21: 41 89 c4 mov %eax,%r12d 24: e9 4f fe ff ff jmp 0xfffffffffffffe78 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 48 c7 c7 c0 d2 89 9a mov $0xffffffff9a89d2c0,%rdi 33: 89 44 24 40 mov %eax,0x40(%rsp) 37: 48 89 74 24 38 mov %rsi,0x38(%rsp) 3c: e8 .byte 0xe8 3d: 68 .byte 0x68 3e: 60 (bad) 3f: 8d .byte 0x8d Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 48 c7 c7 c0 d2 89 9a mov $0xffffffff9a89d2c0,%rdi 9: 89 44 24 40 mov %eax,0x40(%rsp) d: 48 89 74 24 38 mov %rsi,0x38(%rsp) 12: e8 .byte 0xe8 13: 68 .byte 0x68 14: 60 (bad) 15: 8d .byte 0x8d [ 32.766627][ C3] RSP: 0018:ffffc900002783f8 EFLAGS: 00010202 [ 32.766829][ C3] RAX: 000000000000001a RBX: 0000000000000000 RCX: 1ffff11000fa01c9 [ 32.767062][ C3] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: ffff888007d00e48 [ 32.767296][ C3] RBP: ffff888007d010c8 R08: 000000000000001c R09: 0100007fce4d1140 [ 32.767529][ C3] R10: 0100007f0100007f R11: 35fe22003500cdb3 R12: 0000000000005ab2 [ 32.767763][ C3] R13: 0000000000000008 R14: 000000000000001c R15: 0000000000000008 [ 32.767997][ C3] FS: 00007f9cd0a4e300(0000) GS:ffff888036180000(0000) knlGS:0000000000000000 [ 32.768270][ C3] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 32.768465][ C3] CR2: 00007f9cd0d48d60 CR3: 0000000006710001 CR4: 0000000000770ef0 [ 32.768705][ C3] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 32.768936][ C3] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 32.769170][ C3] PKRU: 55555554 [ 32.769290][ C3] Call Trace: [ 32.769408][ C3] [ 32.769488][ C3] ? die (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:434 arch/x86/kernel/dumpstack.c:447) [ 32.769610][ C3] ? do_trap (arch/x86/kernel/traps.c:113 arch/x86/kernel/traps.c:154) [ 32.769729][ C3] ? skb_copy_and_csum_bits (net/core/skbuff.c:3605 (discriminator 1)) [ 32.769890][ C3] ? do_error_trap (./arch/x86/include/asm/traps.h:58 arch/x86/kernel/traps.c:175) [ 32.770045][ C3] ? skb_copy_and_csum_bits (net/core/skbuff.c:3605 (discriminator 1)) [ 32.770200][ C3] ? skb_copy_and_csum_bits (net/core/skbuff.c:3605 (discriminator 1)) [ 32.770355][ C3] ? handle_invalid_op (arch/x86/kernel/traps.c:213) [ 32.770512][ C3] ? skb_copy_and_csum_bits (net/core/skbuff.c:3605 (discriminator 1)) [ 32.770667][ C3] ? exc_invalid_op (arch/x86/kernel/traps.c:265) [ 32.770827][ C3] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 32.770986][ C3] ? skb_copy_and_csum_bits (net/core/skbuff.c:3605 (discriminator 1)) [ 32.771144][ C3] ? skb_copy_and_csum_bits (net/core/skbuff.c:3540) [ 32.771299][ C3] ? icmp_push_reply (net/ipv4/icmp.c:370) [ 32.771456][ C3] ? __udp4_lib_rcv (net/ipv4/udp.c:2441 (discriminator 118)) [ 32.771613][ C3] ? __netif_receive_skb_one_core (net/core/dev.c:5610 (discriminator 4)) [ 32.771808][ C3] ? process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:6053) [ 32.771964][ C3] ? __napi_poll.constprop.0 (net/core/dev.c:6703) [ 32.772118][ C3] ? net_rx_action (net/core/dev.c:6772 net/core/dev.c:6886) [ 32.772274][ C3] icmp_glue_bits (net/ipv4/icmp.c:357) [ 32.772436][ C3] __ip_append_data (net/ipv4/ip_output.c:1166 (discriminator 1)) [ 32.772604][ C3] ? __pfx_icmp_glue_bits (net/ipv4/icmp.c:349) [ 32.772760][ C3] ? __create_object (mm/kmemleak.c:756) [ 32.772918][ C3] ? __pfx___ip_append_data (net/ipv4/ip_output.c:960) [ 32.773072][ C3] ? kasan_save_track (./arch/x86/include/asm/current.h:42 mm/kasan/common.c:60 mm/kasan/common.c:69) [ 32.773238][ C3] ? __kasan_kmalloc (mm/kasan/common.c:391) [ 32.773393][ C3] ? __pfx_icmp_glue_bits (net/ipv4/icmp.c:349) [ 32.773547][ C3] ip_append_data (net/ipv4/ip_output.c:1368 net/ipv4/ip_output.c:1347) [ 32.773704][ C3] icmp_push_reply (net/ipv4/icmp.c:370) [ 32.773861][ C3] __icmp_send (./include/net/route.h:249 net/ipv4/icmp.c:772) [ 32.774017][ C3] ? __pfx___icmp_send (net/ipv4/icmp.c:589) [ 32.774171][ C3] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 32.774328][ C3] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 32.774484][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5137) [ 32.774644][ C3] ? __udp4_lib_lookup (net/ipv4/udp.c:513) [ 32.774801][ C3] ? __udp4_lib_rcv (net/ipv4/udp.c:2441 (discriminator 118)) [ 32.774956][ C3] __udp4_lib_rcv (net/ipv4/udp.c:2441 (discriminator 118)) [ 32.775112][ C3] ? __pfx___udp4_lib_rcv (net/ipv4/udp.c:2363) [ 32.775273][ C3] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 32.775429][ C3] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:207 (discriminator 4)) [ 32.775586][ C3] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) [ 32.775741][ C3] ip_local_deliver (./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:254) [ 32.775899][ C3] ? __pfx_ip_local_deliver (net/ipv4/ip_input.c:243) [ 32.776057][ C3] ? ip_rcv_finish_core.constprop.0 (./include/net/net_namespace.h:383 ./include/linux/netdevice.h:2654 net/ipv4/ip_input.c:372) [ 32.776251][ 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) [ 32.776370][ C3] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) [ 32.776526][ C3] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 32.776683][ C3] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:6051) [ 32.776838][ C3] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) [ 32.776992][ C3] __netif_receive_skb_one_core (net/core/dev.c:5610 (discriminator 4)) [ 32.777185][ C3] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5603) [ 32.777378][ C3] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 32.777535][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 32.777690][ C3] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:6051) [ 32.777846][ C3] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:6053) [ 32.778004][ C3] __napi_poll.constprop.0 (net/core/dev.c:6703) [ 32.778160][ C3] net_rx_action (net/core/dev.c:6772 net/core/dev.c:6886) [ 32.778317][ C3] ? __pfx_net_rx_action (net/core/dev.c:6850) [ 32.778475][ C3] __do_softirq (kernel/softirq.c:553) [ 32.778634][ C3] ? __dev_queue_xmit (./include/linux/rcupdate.h:308 ./include/linux/rcupdate.h:818 net/core/dev.c:4399) [ 32.778789][ C3] do_softirq (kernel/softirq.c:454 kernel/softirq.c:441) [ 32.778911][ C3] [ 32.778991][ C3] [ 32.779068][ C3] __local_bh_enable_ip (kernel/softirq.c:381) [ 32.779224][ C3] ? __dev_queue_xmit (./include/linux/rcupdate.h:308 ./include/linux/rcupdate.h:818 net/core/dev.c:4399) [ 32.779379][ C3] __dev_queue_xmit (net/core/dev.c:4400) [ 32.779535][ C3] ? __pfx_do_raw_write_lock (kernel/locking/spinlock_debug.c:209) [ 32.779694][ C3] ? eth_header (net/ethernet/eth.c:100) [ 32.779855][ C3] ? __pfx___dev_queue_xmit (net/core/dev.c:4281) [ 32.780010][ C3] ? neigh_resolve_output (./include/linux/netdevice.h:3226 net/core/neighbour.c:1558 net/core/neighbour.c:1543) [ 32.780171][ C3] ip_finish_output2 (./include/net/neighbour.h:542 net/ipv4/ip_output.c:235) [ 32.780326][ C3] ? kfree (./include/trace/events/kmem.h:94 mm/slub.c:4396) [ 32.780445][ C3] ? ip_select_ident_segs (./arch/x86/include/asm/atomic.h:85 ./include/linux/atomic/atomic-arch-fallback.h:564 ./include/linux/atomic/atomic-instrumented.h:124 ./include/net/ip.h:561) [ 32.780601][ C3] ? __pfx_ip_finish_output2 (net/ipv4/ip_output.c:199) [ 32.780756][ C3] ? __ip_finish_output (./include/linux/skbuff.h:1624 ./include/linux/skbuff.h:4942 net/ipv4/ip_output.c:307 net/ipv4/ip_output.c:295) [ 32.780911][ C3] ip_output (./include/linux/netfilter.h:303 net/ipv4/ip_output.c:433) [ 32.781028][ C3] ? __ip_local_out (net/ipv4/ip_output.c:96 net/ipv4/ip_output.c:107) [ 32.781183][ C3] ? __pfx_ip_output (net/ipv4/ip_output.c:427) [ 32.781343][ C3] ? ip_make_skb (net/ipv4/ip_output.c:1570) [ 32.781499][ C3] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 32.781658][ C3] ? __pfx_ip_make_skb (net/ipv4/ip_output.c:1546) [ 32.781813][ C3] ? __lock_release (kernel/locking/lockdep.c:5430) [ 32.781970][ C3] ip_send_skb (./include/net/dst.h:450 net/ipv4/ip_output.c:129 net/ipv4/ip_output.c:1496) [ 32.782125][ C3] udp_send_skb (net/ipv4/udp.c:963) [ 32.782283][ C3] udp_sendmsg (net/ipv4/udp.c:1250) [ 32.782444][ C3] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 32.782602][ C3] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3759 kernel/locking/lockdep.c:3782 kernel/locking/lockdep.c:3837) [ 32.782758][ C3] ? __pfx_ip_generic_getfrag (net/ipv4/ip_output.c:935) [ 32.782914][ C3] ? __pfx_udp_sendmsg (net/ipv4/udp.c:1039) [ 32.783070][ C3] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 32.783188][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5137) [ 32.783347][ C3] ? __lock_release (kernel/locking/lockdep.c:5430) [ 32.783501][ C3] ? __might_fault (mm/memory.c:6080 mm/memory.c:6073) [ 32.783657][ C3] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 32.783811][ C3] ? __might_fault (mm/memory.c:6080 mm/memory.c:6073) [ 32.783968][ C3] ? __import_iovec (lib/iov_iter.c:1284 lib/iov_iter.c:1300) [ 32.784130][ C3] ? ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 32.784288][ C3] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 32.784443][ C3] ? __pfx_____sys_sendmsg (net/socket.c:2530) [ 32.784599][ C3] ? __pfx_copy_msghdr_from_user (net/socket.c:2510) [ 32.784793][ C3] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 32.784948][ C3] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3759 kernel/locking/lockdep.c:3782 kernel/locking/lockdep.c:3837) [ 32.785104][ C3] ___sys_sendmsg (net/socket.c:2640) [ 32.785259][ C3] ? __pfx____sys_sendmsg (net/socket.c:2627) [ 32.785416][ C3] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 32.785571][ C3] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 32.785689][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5137) [ 32.785845][ C3] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 32.786001][ C3] ? release_sock (net/core/sock.c:3549) [ 32.786156][ C3] ? reacquire_held_locks (kernel/locking/lockdep.c:5279) [ 32.786310][ C3] ? release_sock (net/core/sock.c:3549) [ 32.786464][ C3] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 32.786624][ C3] __sys_sendmmsg (net/socket.c:2724) [ 32.786783][ C3] ? __pfx___sys_sendmmsg (net/socket.c:2685) [ 32.786937][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 32.787093][ C3] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:77 kernel/softirq.c:386) [ 32.787249][ C3] ? ip4_datagram_connect (net/ipv4/datagram.c:93) [ 32.787405][ C3] ? __sys_connect (net/socket.c:2048 net/socket.c:2065) [ 32.787561][ C3] ? __pfx___sys_connect (net/socket.c:2055) [ 32.787716][ C3] ? __pfx___sys_setsockopt (net/socket.c:2324) [ 32.787873][ C3] ? __x64_sys_poll (fs/select.c:1082 fs/select.c:1068 fs/select.c:1068) [ 32.788034][ C3] ? __pfx___x64_sys_poll (fs/select.c:1068) [ 32.788190][ C3] __x64_sys_sendmmsg (net/socket.c:2750) [ 32.788344][ C3] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 32.788537][ C3] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 32.788694][ C3] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) [ 32.788887][ C3] RIP: 0033:0x7f9cd0d24c1a [ 32.789049][ C3] Code: ff eb bd 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 15 b8 33 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 5e c3 0f 1f 44 00 00 48 83 ec 28 89 54 24 18 All code ======== 0: ff (bad) 1: eb bd jmp 0xffffffffffffffc0 3: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) a: 00 00 00 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 33 01 00 00 mov $0x133,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction 30: 77 5e ja 0x90 32: c3 ret 33: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 38: 48 83 ec 28 sub $0x28,%rsp 3c: 89 54 24 18 mov %edx,0x18(%rsp) Code starting with the faulting instruction =========================================== 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 5e ja 0x66 8: c3 ret 9: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) e: 48 83 ec 28 sub $0x28,%rsp 12: 89 54 24 18 mov %edx,0x18(%rsp) [ 32.789601][ C3] RSP: 002b:00007fffd281d9d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 32.789837][ C3] RAX: ffffffffffffffda RBX: 000000000000001a RCX: 00007f9cd0d24c1a [ 32.790069][ C3] RDX: 0000000000000002 RSI: 00007fffd281db30 RDI: 0000000000000007 [ 32.790304][ C3] RBP: 000000000e2a1737 R08: 0000000000000007 R09: 00007fffd29b7080 [ 32.790540][ C3] R10: 0000000000004000 R11: 0000000000000246 R12: 00007fffd281dad0 Finger prints: skb_copy_and_csum_bits:icmp_glue_bits:__ip_append_data:ip_append_data