======================================
| [ 116.151986][ T819] tc (819) used greatest stack depth: 23288 bytes left
| [ 156.582616][ C3] ------------[ cut here ]------------
| [ 156.583055][ C3] kernel BUG at net/core/skbuff.c:2813!
| [ 156.583292][ C3] invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
[ 156.583834][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 156.584221][ C3] RIP: 0010:__pskb_pull_tail (net/core/skbuff.c:2813 (discriminator 1))
[ 156.584451][ C3] 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)
[ 156.585058][ C3] RSP: 0018:ffffc90000278188 EFLAGS: 00010282
[ 156.585274][ C3] RAX: 00000000fffffff2 RBX: ffff888004216434 RCX: 0000000000000004
[ 156.585543][ C3] RDX: dffffc0000000000 RSI: 1ffff11000a377d9 RDI: ffff8880051bbec8
[ 156.585806][ C3] RBP: ffffc90000278208 R08: 00000000000007b4 R09: ffff88800421647c
[ 156.586065][ C3] R10: ffff888004216480 R11: ffffffff868c9c09 R12: ffff8880042163c0
[ 156.586326][ C3] R13: 0000000000000ec0 R14: ffff888004216474 R15: ffff888004216480
[ 156.586586][ C3] FS: 00007f2b5d96c740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[ 156.586892][ C3] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 156.587107][ C3] CR2: 000055728e2ee000 CR3: 0000000005e26002 CR4: 0000000000770ef0
[ 156.587365][ C3] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 156.587620][ C3] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 156.587880][ C3] PKRU: 55555554
[ 156.588010][ C3] Call Trace:
[ 156.588145][ C3]
[ 156.588235][ C3] ? die (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:434 arch/x86/kernel/dumpstack.c:447)
[ 156.588368][ C3] ? do_trap (arch/x86/kernel/traps.c:113 arch/x86/kernel/traps.c:154)
[ 156.588499][ C3] ? __pskb_pull_tail (net/core/skbuff.c:2813 (discriminator 1))
[ 156.588671][ C3] ? do_error_trap (./arch/x86/include/asm/traps.h:58 arch/x86/kernel/traps.c:175)
[ 156.588842][ C3] ? __pskb_pull_tail (net/core/skbuff.c:2813 (discriminator 1))
[ 156.589012][ C3] ? __pskb_pull_tail (net/core/skbuff.c:2813 (discriminator 1))
[ 156.589181][ C3] ? handle_invalid_op (arch/x86/kernel/traps.c:213)
[ 156.589350][ C3] ? __pskb_pull_tail (net/core/skbuff.c:2813 (discriminator 1))
[ 156.589522][ C3] ? exc_invalid_op (arch/x86/kernel/traps.c:265)
[ 156.589696][ C3] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568)
[ 156.589871][ C3] ? __do_softirq (kernel/softirq.c:553)
[ 156.590044][ C3] ? __pskb_pull_tail (net/core/skbuff.c:2813 (discriminator 1))
[ 156.590215][ C3] ? __pskb_pull_tail (net/core/skbuff.c:2813)
[ 156.590390][ C3] tcf_csum_skb_nextlayer (./include/linux/skbuff.h:2731 ./include/linux/skbuff.h:2739 net/sched/act_csum.c:140) act_csum
[ 156.590610][ C3] ? skb_ensure_writable (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/linux/skbuff.h:1919 ./include/linux/skbuff.h:1916 net/core/skbuff.c:6109)
[ 156.590785][ C3] tcf_csum_ipv4_udp (net/sched/act_csum.c:271) act_csum
[ 156.591000][ C3] ? tcf_pedit_act (net/sched/act_pedit.c:405) act_pedit
[ 156.591220][ C3] tcf_csum_ipv4 (net/sched/act_csum.c:423) act_csum
[ 156.591393][ 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)
[ 156.591567][ C3] tcf_csum_act (net/sched/act_csum.c:592) act_csum
[ 156.591745][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5137)
[ 156.591920][ C3] tcf_action_exec.part.0 (./include/net/tc_wrapper.h:130 net/sched/act_api.c:1100)
[ 156.592104][ C3] fl_classify (net/sched/cls_flower.c:345) cls_flower
[ 156.592285][ C3] ? __pfx_fl_classify (net/sched/cls_flower.c:316) cls_flower
[ 156.592504][ C3] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825)
[ 156.592678][ C3] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825)
[ 156.592849][ 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)
[ 156.593019][ C3] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3))
[ 156.593150][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5137)
[ 156.593435][ 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)
[ 156.593607][ C3] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3759 kernel/locking/lockdep.c:3782 kernel/locking/lockdep.c:3837)
[ 156.593782][ 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)
[ 156.593955][ C3] ? validate_chain (./include/linux/hash.h:78 kernel/locking/lockdep.c:3759 kernel/locking/lockdep.c:3782 kernel/locking/lockdep.c:3837)
[ 156.594124][ 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)
[ 156.594405][ C3] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3))
[ 156.594533][ 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)
[ 156.594705][ C3] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825)
[ 156.594876][ C3] __tcf_classify.constprop.0 (./include/net/tc_wrapper.h:197 net/sched/cls_api.c:1768)
[ 156.595165][ C3] tcf_classify (net/sched/cls_api.c:1813)
[ 156.595295][ C3] ? __pfx_tcf_classify (net/sched/cls_api.c:1813)
[ 156.595470][ C3] prio_enqueue (net/sched/sch_prio.c:44 net/sched/sch_prio.c:75) sch_prio
[ 156.595644][ C3] ? __pfx_prio_enqueue (net/sched/sch_prio.c:70) sch_prio
[ 156.595979][ C3] ? do_raw_spin_lock (./arch/x86/include/asm/atomic.h:115 ./include/linux/atomic/atomic-arch-fallback.h:2164 ./include/linux/atomic/atomic-instrumented.h:1296 ./include/asm-generic/qspinlock.h:111 kernel/locking/spinlock_debug.c:116)
[ 156.596151][ C3] dev_qdisc_enqueue (net/core/dev.c:3758)
[ 156.596324][ C3] __dev_xmit_skb (./include/net/sch_generic.h:194 net/core/dev.c:3850)
[ 156.596495][ C3] ? lock_sync (kernel/locking/lockdep.c:116 kernel/locking/lockdep.c:5794)
[ 156.596667][ C3] ? __pfx___dev_xmit_skb (net/core/dev.c:3767)
[ 156.596957][ C3] __dev_queue_xmit (net/core/dev.c:4338)
[ 156.597130][ C3] ? __pfx_do_raw_write_lock (kernel/locking/spinlock_debug.c:209)
[ 156.597304][ C3] ? eth_header (net/ethernet/eth.c:100)
[ 156.597475][ C3] ? __pfx___dev_queue_xmit (net/core/dev.c:4281)
[ 156.597648][ C3] ? neigh_resolve_output (./include/linux/netdevice.h:3226 net/core/neighbour.c:1558 net/core/neighbour.c:1543)
[ 156.597820][ C3] ? __neigh_update (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/neighbour.c:1446)
[ 156.597991][ C3] __neigh_update (net/core/neighbour.c:1461)
[ 156.598168][ C3] arp_process (./include/linux/instrumented.h:96 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:400 (discriminator 4) ./include/linux/refcount.h:261 (discriminator 4) ./include/linux/refcount.h:304 (discriminator 4) ./include/linux/refcount.h:322 (discriminator 4) ./include/net/neighbour.h:444 (discriminator 4) net/ipv4/arp.c:934 (discriminator 4))
[ 156.598453][ C3] ? __pfx_arp_process (net/ipv4/arp.c:699)
[ 156.598627][ C3] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756)
[ 156.598799][ C3] ? __pfx_arp_rcv (net/ipv4/arp.c:965)
[ 156.598969][ C3] __netif_receive_skb_one_core (net/core/dev.c:5610 (discriminator 5))
[ 156.599293][ C3] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5603)
[ 156.599505][ C3] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114)
[ 156.599675][ C3] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725)
[ 156.599848][ C3] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:6051)
[ 156.600132][ C3] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:6053)
[ 156.600305][ C3] ? __pfx___lock_release (kernel/locking/lockdep.c:5406)
[ 156.600476][ C3] __napi_poll.constprop.0 (net/core/dev.c:6703)
[ 156.600648][ C3] net_rx_action (net/core/dev.c:6772 net/core/dev.c:6886)
[ 156.600933][ C3] ? __pfx_net_rx_action (net/core/dev.c:6850)
[ 156.601105][ C3] ? ktime_get (kernel/time/timekeeping.c:195 (discriminator 4) kernel/time/timekeeping.c:289 (discriminator 4) kernel/time/timekeeping.c:388 (discriminator 4) kernel/time/timekeeping.c:848 (discriminator 4))
[ 156.601234][ C3] ? hrtimer_interrupt (kernel/time/hrtimer.c:1812)
[ 156.601406][ C3] __do_softirq (kernel/softirq.c:553)
[ 156.601577][ C3] ? __neigh_event_send (./include/linux/bottom_half.h:33 net/core/neighbour.c:1245)
[ 156.601751][ C3] do_softirq (kernel/softirq.c:454 kernel/softirq.c:441)
[ 156.601883][ C3]
[ 156.601980][ C3]
[ 156.602067][ C3] __local_bh_enable_ip (kernel/softirq.c:381)
[ 156.602239][ C3] __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)
[ 156.602522][ C3] ? do_raw_write_lock (kernel/locking/spinlock_debug.c:187 kernel/locking/spinlock_debug.c:210)
[ 156.602694][ C3] ? __pfx_do_raw_write_lock (kernel/locking/spinlock_debug.c:209)
[ 156.602865][ C3] neigh_resolve_output (net/core/neighbour.c:1547)
[ 156.603034][ C3] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:77 kernel/softirq.c:386)
[ 156.603206][ C3] ? ___neigh_create (net/core/neighbour.c:722 (discriminator 9))
[ 156.603490][ C3] ip_finish_output2 (./include/net/neighbour.h:542 net/ipv4/ip_output.c:235)
[ 156.603663][ C3] ? kfree (./include/trace/events/kmem.h:94 mm/slub.c:4396)
[ 156.603798][ 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)
[ 156.603967][ C3] ? __pfx_ip_finish_output2 (net/ipv4/ip_output.c:199)
[ 156.604248][ 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)
[ 156.604419][ C3] ip_output (./include/linux/netfilter.h:303 net/ipv4/ip_output.c:433)
[ 156.604547][ C3] ? __ip_local_out (net/ipv4/ip_output.c:96 net/ipv4/ip_output.c:107)
[ 156.604727][ C3] ? __pfx_ip_output (net/ipv4/ip_output.c:427)
[ 156.604897][ C3] ? ip_make_skb (net/ipv4/ip_output.c:1570)
[ 156.605291][ C3] ? find_held_lock (kernel/locking/lockdep.c:5244)
[ 156.605460][ C3] ? __pfx_ip_make_skb (net/ipv4/ip_output.c:1546)
[ 156.605631][ C3] ? __lock_release (kernel/locking/lockdep.c:5430)
[ 156.605801][ C3] ip_send_skb (./include/net/dst.h:450 net/ipv4/ip_output.c:129 net/ipv4/ip_output.c:1496)
[ 156.606084][ C3] udp_send_skb (net/ipv4/udp.c:963)
[ 156.606256][ C3] udp_sendmsg (net/ipv4/udp.c:1250)
[ 156.606428][ 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)
[ 156.606601][ C3] ? mark_lock (kernel/locking/lockdep.c:4656 (discriminator 3))
[ 156.606851][ C3] ? __pfx_ip_generic_getfrag (net/ipv4/ip_output.c:935)
[ 156.607024][ C3] ? __pfx_udp_sendmsg (net/ipv4/udp.c:1039)
[ 156.607197][ C3] ? mark_held_locks (kernel/locking/lockdep.c:4274)
[ 156.607369][ C3] ? __lock_release (kernel/locking/lockdep.c:5430)
[ 156.607542][ C3] ? __unix_dgram_recvmsg (net/unix/af_unix.c:2517)
[ 156.607716][ C3] ? __pfx___lock_release (kernel/locking/lockdep.c:5406)
[ 156.607890][ C3] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719)
[ 156.608062][ C3] ? do_raw_spin_lock (./arch/x86/include/asm/atomic.h:115 ./include/linux/atomic/atomic-arch-fallback.h:2164 ./include/linux/atomic/atomic-instrumented.h:1296 ./include/asm-generic/qspinlock.h:111 kernel/locking/spinlock_debug.c:116)
[ 156.608232][ C3] ? __unix_dgram_recvmsg (net/unix/af_unix.c:2517)
[ 156.608516][ C3] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[ 156.608686][ C3] ? _raw_spin_unlock (./arch/x86/include/asm/preempt.h:94 ./include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186)
[ 156.608856][ C3] ? __unix_dgram_recvmsg (net/unix/af_unix.c:2517)
[ 156.609028][ C3] ? sock_write_iter (net/socket.c:730 net/socket.c:745 net/socket.c:1160)
[ 156.609311][ C3] sock_write_iter (net/socket.c:730 net/socket.c:745 net/socket.c:1160)
[ 156.609482][ C3] ? __pfx_sock_write_iter (net/socket.c:1144)
[ 156.609659][ C3] vfs_write (./include/linux/fs.h:2087 fs/read_write.c:497 fs/read_write.c:590)
[ 156.609789][ C3] ? __lock_release (kernel/locking/lockdep.c:5430)
[ 156.609961][ C3] ? __pfx_vfs_write (fs/read_write.c:571)
[ 156.610246][ C3] ? __fget_light (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1145)
[ 156.610418][ C3] ? __pfx_find_vma (mm/mmap.c:1883)
[ 156.610591][ C3] ksys_write (fs/read_write.c:643)
[ 156.610719][ C3] ? __pfx_ksys_write (fs/read_write.c:633)
[ 156.611003][ C3] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
[ 156.611174][ C3] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129)
[ 156.611388][ C3] RIP: 0033:0x7f2b5daf8957
[ 156.611565][ C3] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
0: 0b 00 or (%rax),%eax
2: f7 d8 neg %eax
4: 64 89 02 mov %eax,%fs:(%rdx)
7: 48 c7 c0 ff ff ff ff mov $0xffffffffffffffff,%rax
e: eb b7 jmp 0xffffffffffffffc7
10: 0f 1f 00 nopl (%rax)
13: f3 0f 1e fa endbr64
17: 64 8b 04 25 18 00 00 mov %fs:0x18,%eax
1e: 00
1f: 85 c0 test %eax,%eax
21: 75 10 jne 0x33
23: b8 01 00 00 00 mov $0x1,%eax
28: 0f 05 syscall
2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction
30: 77 51 ja 0x83
32: c3 ret
33: 48 83 ec 28 sub $0x28,%rsp
37: 48 89 54 24 18 mov %rdx,0x18(%rsp)
3c: 48 rex.W
3d: 89 .byte 0x89
3e: 74 24 je 0x64
Code starting with the faulting instruction
===========================================
0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax
6: 77 51 ja 0x59
8: c3 ret
9: 48 83 ec 28 sub $0x28,%rsp
d: 48 89 54 24 18 mov %rdx,0x18(%rsp)
12: 48 rex.W
13: 89 .byte 0x89
14: 74 24 je 0x3a
[ 156.612302][ C3] RSP: 002b:00007ffdd4153068 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 156.612561][ C3] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2b5daf8957
[ 156.612866][ C3] RDX: 00000000000007b4 RSI: 000055728e2ee000 RDI: 0000000000000008
[ 156.613280][ C3] RBP: 000055728e2ee000 R08: 00000000000007b4 R09: 0000000000000000
[ 156.613704][ C3] R10: 0000000000000040 R11: 0000000000000246 R12: 0000000000000008
Finger prints:
__pskb_pull_tail:tcf_csum_skb_nextlayer:tcf_csum_ipv4_udp:tcf_csum_ipv4