====================================== | [ 33.547570][ T324] veth0: renamed from veth-hv-2 | [ 34.317694][ C0] ------------[ cut here ]------------ | [ 34.318109][ C0] kernel BUG at net/core/skbuff.c:3605! | [ 34.318342][ C0] invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 34.318871][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 34.319288][ C0] RIP: 0010:skb_copy_and_csum_bits (net/core/skbuff.c:3605 (discriminator 1)) [ 34.319536][ C0] 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 e9 89 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 e9 89 mov $0xffffffff89e9d2c0,%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 e9 89 mov $0xffffffff89e9d2c0,%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 [ 34.320193][ C0] RSP: 0018:ffffc900000073f8 EFLAGS: 00010202 [ 34.320427][ C0] RAX: 000000000000001a RBX: 0000000000000000 RCX: 1ffff11001009891 [ 34.320711][ C0] RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: ffff88800804c488 [ 34.320982][ C0] RBP: ffff88800804fb08 R08: 000000000000001c R09: 0100007f66591140 [ 34.321256][ C0] R10: 0100007f0100007f R11: 35fe22003500eae9 R12: 00000000000077e8 [ 34.321534][ C0] R13: 0000000000000008 R14: 000000000000001c R15: 0000000000000008 [ 34.321810][ C0] FS: 00007f3c7e642300(0000) GS:ffff888036000000(0000) knlGS:0000000000000000 [ 34.322138][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 34.322369][ C0] CR2: 00007f3c7e93cd60 CR3: 000000000694e003 CR4: 0000000000770ef0 [ 34.322647][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 34.322924][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 34.323197][ C0] PKRU: 55555554 [ 34.323341][ C0] Call Trace: [ 34.323482][ C0] [ 34.323577][ C0] ? die (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:434 arch/x86/kernel/dumpstack.c:447) [ 34.323728][ C0] ? do_trap (arch/x86/kernel/traps.c:113 arch/x86/kernel/traps.c:154) [ 34.323871][ C0] ? skb_copy_and_csum_bits (net/core/skbuff.c:3605 (discriminator 1)) [ 34.324057][ C0] ? do_error_trap (./arch/x86/include/asm/traps.h:58 arch/x86/kernel/traps.c:175) [ 34.324242][ C0] ? skb_copy_and_csum_bits (net/core/skbuff.c:3605 (discriminator 1)) [ 34.324426][ C0] ? skb_copy_and_csum_bits (net/core/skbuff.c:3605 (discriminator 1)) [ 34.324611][ C0] ? handle_invalid_op (arch/x86/kernel/traps.c:213) [ 34.324800][ C0] ? skb_copy_and_csum_bits (net/core/skbuff.c:3605 (discriminator 1)) [ 34.324983][ C0] ? exc_invalid_op (arch/x86/kernel/traps.c:265) [ 34.325171][ C0] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 34.325362][ C0] ? skb_copy_and_csum_bits (net/core/skbuff.c:3605 (discriminator 1)) [ 34.325546][ C0] ? skb_copy_and_csum_bits (net/core/skbuff.c:3540) [ 34.325727][ C0] ? icmp_push_reply (net/ipv4/icmp.c:370) [ 34.325915][ C0] ? __udp4_lib_rcv (net/ipv4/udp.c:2441 (discriminator 118)) [ 34.326102][ C0] ? __netif_receive_skb_one_core (net/core/dev.c:5610 (discriminator 4)) [ 34.326342][ C0] ? process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:6053) [ 34.326546][ C0] ? __napi_poll.constprop.0 (net/core/dev.c:6703) [ 34.326732][ C0] ? net_rx_action (net/core/dev.c:6772 net/core/dev.c:6886) [ 34.326918][ C0] icmp_glue_bits (net/ipv4/icmp.c:357) [ 34.327104][ C0] __ip_append_data (net/ipv4/ip_output.c:1166 (discriminator 1)) [ 34.327292][ C0] ? __pfx_icmp_glue_bits (net/ipv4/icmp.c:349) [ 34.327479][ C0] ? __create_object (mm/kmemleak.c:756) [ 34.327668][ C0] ? __pfx___ip_append_data (net/ipv4/ip_output.c:960) [ 34.327857][ C0] ? kasan_save_track (./arch/x86/include/asm/current.h:42 mm/kasan/common.c:60 mm/kasan/common.c:69) [ 34.328045][ C0] ? __kasan_kmalloc (mm/kasan/common.c:391) [ 34.328230][ C0] ? __pfx_icmp_glue_bits (net/ipv4/icmp.c:349) [ 34.328413][ C0] ip_append_data (net/ipv4/ip_output.c:1368 net/ipv4/ip_output.c:1347) [ 34.328602][ C0] icmp_push_reply (net/ipv4/icmp.c:370) [ 34.328787][ C0] __icmp_send (./include/net/route.h:249 net/ipv4/icmp.c:772) [ 34.328973][ C0] ? __pfx___icmp_send (net/ipv4/icmp.c:589) [ 34.329156][ C0] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) [ 34.329342][ C0] ? 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) [ 34.329534][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5137) [ 34.329722][ C0] ? __udp4_lib_lookup (net/ipv4/udp.c:513) [ 34.329909][ C0] ? __udp4_lib_rcv (net/ipv4/udp.c:2441 (discriminator 118)) [ 34.330093][ C0] __udp4_lib_rcv (net/ipv4/udp.c:2441 (discriminator 118)) [ 34.330279][ C0] ? __pfx___udp4_lib_rcv (net/ipv4/udp.c:2363) [ 34.330464][ C0] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 34.330649][ C0] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:207 (discriminator 4)) [ 34.330836][ C0] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) [ 34.331023][ C0] ip_local_deliver (./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:254) [ 34.331207][ C0] ? __pfx_ip_local_deliver (net/ipv4/ip_input.c:243) [ 34.331395][ C0] ? ip_rcv_finish_core.constprop.0 (./include/net/net_namespace.h:383 ./include/linux/netdevice.h:2654 net/ipv4/ip_input.c:372) [ 34.331632][ C0] 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) [ 34.331771][ C0] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) [ 34.331955][ C0] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) [ 34.332137][ C0] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:6051) [ 34.332323][ C0] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) [ 34.332508][ C0] __netif_receive_skb_one_core (net/core/dev.c:5610 (discriminator 4)) [ 34.332737][ C0] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5603) [ 34.332966][ C0] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 34.333150][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 34.333333][ C0] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:6051) [ 34.333517][ C0] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:6053) [ 34.333704][ C0] __napi_poll.constprop.0 (net/core/dev.c:6703) [ 34.333890][ C0] net_rx_action (net/core/dev.c:6772 net/core/dev.c:6886) [ 34.334079][ C0] ? __pfx_net_rx_action (net/core/dev.c:6850) [ 34.334266][ C0] __do_softirq (kernel/softirq.c:553) [ 34.334452][ C0] ? __dev_queue_xmit (./include/linux/rcupdate.h:308 ./include/linux/rcupdate.h:818 net/core/dev.c:4399) [ 34.334637][ C0] do_softirq (kernel/softirq.c:454 kernel/softirq.c:441) [ 34.334777][ C0] [ 34.334872][ C0] [ 34.334965][ C0] __local_bh_enable_ip (kernel/softirq.c:381) [ 34.335149][ C0] ? __dev_queue_xmit (./include/linux/rcupdate.h:308 ./include/linux/rcupdate.h:818 net/core/dev.c:4399) [ 34.335333][ C0] __dev_queue_xmit (net/core/dev.c:4400) [ 34.335520][ C0] ? __pfx_do_raw_write_lock (kernel/locking/spinlock_debug.c:209) [ 34.335709][ C0] ? eth_header (net/ethernet/eth.c:100) [ 34.335896][ C0] ? __pfx___dev_queue_xmit (net/core/dev.c:4281) [ 34.336082][ C0] ? neigh_resolve_output (./include/linux/netdevice.h:3226 net/core/neighbour.c:1558 net/core/neighbour.c:1543) [ 34.336270][ C0] ip_finish_output2 (./include/net/neighbour.h:542 net/ipv4/ip_output.c:235) [ 34.336469][ C0] ? kfree (./include/trace/events/kmem.h:94 mm/slub.c:4396) [ 34.336612][ C0] ? 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) [ 34.336797][ C0] ? __pfx_ip_finish_output2 (net/ipv4/ip_output.c:199) [ 34.336986][ C0] ? __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) [ 34.337171][ C0] ip_output (./include/linux/netfilter.h:303 net/ipv4/ip_output.c:433) [ 34.337311][ C0] ? __ip_local_out (net/ipv4/ip_output.c:96 net/ipv4/ip_output.c:107) [ 34.337496][ C0] ? __pfx_ip_output (net/ipv4/ip_output.c:427) [ 34.337681][ C0] ? ip_make_skb (net/ipv4/ip_output.c:1570) [ 34.337870][ C0] ? find_held_lock (kernel/locking/lockdep.c:5244) [ 34.338058][ C0] ? __pfx_ip_make_skb (net/ipv4/ip_output.c:1546) [ 34.338242][ C0] ? __lock_release (kernel/locking/lockdep.c:5430) [ 34.338428][ C0] ip_send_skb (./include/net/dst.h:450 net/ipv4/ip_output.c:129 net/ipv4/ip_output.c:1496) [ 34.338613][ C0] udp_send_skb (net/ipv4/udp.c:963) [ 34.338800][ C0] udp_sendmsg (net/ipv4/udp.c:1250) [ 34.338983][ C0] ? 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) [ 34.339168][ C0] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3759 kernel/locking/lockdep.c:3782 kernel/locking/lockdep.c:3837) [ 34.339353][ C0] ? __pfx_ip_generic_getfrag (net/ipv4/ip_output.c:935) [ 34.339539][ C0] ? __pfx_udp_sendmsg (net/ipv4/udp.c:1039) [ 34.339725][ C0] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 34.339865][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5137) [ 34.340055][ C0] ? __lock_release (kernel/locking/lockdep.c:5430) [ 34.340240][ C0] ? __might_fault (mm/memory.c:6080 mm/memory.c:6073) [ 34.340427][ C0] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 34.340610][ C0] ? __might_fault (mm/memory.c:6080 mm/memory.c:6073) [ 34.340795][ C0] ? __import_iovec (lib/iov_iter.c:1284 lib/iov_iter.c:1300) [ 34.340986][ C0] ? ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 34.341173][ C0] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) [ 34.341358][ C0] ? __pfx_____sys_sendmsg (net/socket.c:2530) [ 34.341542][ C0] ? __pfx_copy_msghdr_from_user (net/socket.c:2510) [ 34.341874][ C0] ? 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) [ 34.342058][ C0] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3759 kernel/locking/lockdep.c:3782 kernel/locking/lockdep.c:3837) [ 34.342242][ C0] ___sys_sendmsg (net/socket.c:2640) [ 34.342425][ C0] ? __pfx____sys_sendmsg (net/socket.c:2627) [ 34.342707][ C0] ? 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) [ 34.342891][ C0] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3)) [ 34.343031][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5137) [ 34.343215][ C0] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) [ 34.343402][ C0] ? release_sock (net/core/sock.c:3549) [ 34.343694][ C0] ? reacquire_held_locks (kernel/locking/lockdep.c:5279) [ 34.343877][ C0] ? release_sock (net/core/sock.c:3549) [ 34.344060][ C0] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145) [ 34.344248][ C0] __sys_sendmmsg (net/socket.c:2724) [ 34.344432][ C0] ? __pfx___sys_sendmmsg (net/socket.c:2685) [ 34.344616][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 34.344802][ C0] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:77 kernel/softirq.c:386) [ 34.344985][ C0] ? ip4_datagram_connect (net/ipv4/datagram.c:93) [ 34.345174][ C0] ? __sys_connect (net/socket.c:2048 net/socket.c:2065) [ 34.345360][ C0] ? __pfx___sys_connect (net/socket.c:2055) [ 34.345545][ C0] ? __pfx___sys_setsockopt (net/socket.c:2324) [ 34.345730][ C0] ? __x64_sys_poll (fs/select.c:1082 fs/select.c:1068 fs/select.c:1068) [ 34.345918][ C0] ? __pfx___x64_sys_poll (fs/select.c:1068) [ 34.346202][ C0] __x64_sys_sendmmsg (net/socket.c:2750) [ 34.346401][ C0] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) [ 34.346651][ C0] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 34.346838][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) [ 34.347265][ C0] RIP: 0033:0x7f3c7e918c1a [ 34.347455][ C0] 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) [ 34.348209][ C0] RSP: 002b:00007ffffa082e18 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 34.348495][ C0] RAX: ffffffffffffffda RBX: 000000000000001a RCX: 00007f3c7e918c1a [ 34.348870][ C0] RDX: 0000000000000002 RSI: 00007ffffa082f70 RDI: 0000000000000007 [ 34.349145][ C0] RBP: 0000000000b422f1 R08: 0000000000000007 R09: 00007ffffa0b2080 [ 34.349420][ C0] R10: 0000000000004000 R11: 0000000000000246 R12: 00007ffffa082f10 Finger prints: skb_copy_and_csum_bits:icmp_glue_bits:__ip_append_data:ip_append_data