------------[ cut here ]------------
kernel BUG at net/core/skbuff.c:1591!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.19.0-rc1-syzkaller-00094-g3d9f55c57bc3 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
RIP: 0010:skb_copy+0x340/0x3c0 net/core/skbuff.c:1591
Code: 89 e7 e8 c3 f2 ff ff e8 5e c4 2d fa 4c 89 e0 48 83 c4 08 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 47 c4 2d fa 0f 0b e8 40 c4 2d fa <0f> 0b e8 59 87 7a fa e9 b4 fd ff ff e8 6f 87 7a fa e9 7b fd ff ff
RSP: 0018:ffffc90000007340 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 00000000fffffff2 RCX: 0000000000000100
RDX: ffffffff8babc940 RSI: ffffffff874cb230 RDI: 0000000000000005
RBP: ffff888042ab1400 R08: 0000000000000005 R09: 0000000000000000
R10: 00000000fffffff2 R11: 0000000000000000 R12: ffff888042ab1540
R13: 0000000000000ea0 R14: ffff88801a3f8000 R15: 0000000000000daa
FS: 0000000000000000(0000) GS:ffff88802c800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000f6f36110 CR3: 000000000ba8e000 CR4: 0000000000150ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
skb_unshare include/linux/skbuff.h:2149 [inline]
netem_enqueue+0x2939/0x3550 net/sched/sch_netem.c:504
dev_qdisc_enqueue+0x40/0x300 net/core/dev.c:3783
__dev_xmit_skb net/core/dev.c:3872 [inline]
__dev_queue_xmit+0x2093/0x3900 net/core/dev.c:4219
dev_queue_xmit include/linux/netdevice.h:2994 [inline]
neigh_hh_output include/net/neighbour.h:533 [inline]
neigh_output include/net/neighbour.h:547 [inline]
ip_finish_output2+0x14d8/0x2170 net/ipv4/ip_output.c:228
__ip_finish_output net/ipv4/ip_output.c:306 [inline]
__ip_finish_output+0x396/0x650 net/ipv4/ip_output.c:288
ip_finish_output+0x32/0x280 net/ipv4/ip_output.c:316
NF_HOOK_COND include/linux/netfilter.h:296 [inline]
ip_output+0x19f/0x310 net/ipv4/ip_output.c:430
dst_output include/net/dst.h:451 [inline]
ip_local_out net/ipv4/ip_output.c:126 [inline]
__ip_queue_xmit+0x8de/0x1be0 net/ipv4/ip_output.c:532
__tcp_transmit_skb+0x190e/0x38c0 net/ipv4/tcp_output.c:1405
tcp_transmit_skb net/ipv4/tcp_output.c:1423 [inline]
__tcp_retransmit_skb+0x5f9/0x2940 net/ipv4/tcp_output.c:3232
tcp_retransmit_skb+0x2a/0x360 net/ipv4/tcp_output.c:3255
tcp_retransmit_timer+0xf25/0x3360 net/ipv4/tcp_timer.c:539
tcp_write_timer_handler+0x5e6/0xbc0 net/ipv4/tcp_timer.c:622
tcp_write_timer+0xa2/0x2b0 net/ipv4/tcp_timer.c:642
call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1474
expire_timers kernel/time/timer.c:1519 [inline]
__run_timers.part.0+0x679/0xa80 kernel/time/timer.c:1790
__run_timers kernel/time/timer.c:1768 [inline]
run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1803
__do_softirq+0x29b/0x9c2 kernel/softirq.c:571
invoke_softirq kernel/softirq.c:445 [inline]
__irq_exit_rcu+0x123/0x180 kernel/softirq.c:650
irq_exit_rcu+0x5/0x20 kernel/softirq.c:662
sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:default_idle+0xb/0x10 arch/x86/kernel/process.c:731
Code: ff ff ff 48 89 df e8 a4 26 4d f8 e9 55 ff ff ff 4c 89 e7 e8 97 26 4d f8 eb 96 0f 1f 44 00 00 eb 07 0f 00 2d 27 a3 4c 00 fb f4 cc cc cc cc 41 55 41 54 55 48 89 fd 53 e8 22 63 00 f8 e8 ad 11
RSP: 0018:ffffffff8ba07e18 EFLAGS: 00000206
RAX: 0000000000a40ae7 RBX: ffffffff8babc940 RCX: ffffffff89771a91
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000001 R09: ffff88802c83af13
R10: ffffed10059075e2 R11: 0000000000000001 R12: fffffbfff1757928
R13: 0000000000000000 R14: ffffffff8dbb7510 R15: 0000000000000000
default_idle_call+0x80/0xc0 kernel/sched/idle.c:109
cpuidle_idle_call kernel/sched/idle.c:191 [inline]
do_idle+0x401/0x590 kernel/sched/idle.c:303
cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:400
rest_init+0x169/0x270 init/main.c:726
arch_call_rest_init+0xf/0x14 init/main.c:882
start_kernel+0x46e/0x48f init/main.c:1137
secondary_startup_64_no_verify+0xce/0xdb
Modules linked in:
---[ end trace 0000000000000000 ]---
---[ end trace 0000000000000000 ]---
RIP: 0010:skb_copy+0x340/0x3c0 net/core/skbuff.c:1591
Code: 89 e7 e8 c3 f2 ff ff e8 5e c4 2d fa 4c 89 e0 48 83 c4 08 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 47 c4 2d fa 0f 0b e8 40 c4 2d fa <0f> 0b e8 59 87 7a fa e9 b4 fd ff ff e8 6f 87 7a fa e9 7b fd ff ff
RSP: 0018:ffffc90000007340 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 00000000fffffff2 RCX: 0000000000000100
RDX: ffffffff8babc940 RSI: ffffffff874cb230 RDI: 0000000000000005
RBP: ffff888042ab1400 R08: 0000000000000005 R09: 0000000000000000
R10: 00000000fffffff2 R11: 0000000000000000 R12: ffff888042ab1540
R13: 0000000000000ea0 R14: ffff88801a3f8000 R15: 0000000000000daa
FS: 0000000000000000(0000) GS:ffff88802c800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000f6f36110 CR3: 000000000ba8e000 CR4: 0000000000150ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 2 bytes skipped:
0: ff 48 89 decl -0x77(%rax)
3: df e8 fucomip %st(0),%st
5: a4 movsb %ds:(%rsi),%es:(%rdi)
6: 26 4d f8 es rex.WRB clc
9: e9 55 ff ff ff jmpq 0xffffff63
e: 4c 89 e7 mov %r12,%rdi
11: e8 97 26 4d f8 callq 0xf84d26ad
16: eb 96 jmp 0xffffffae
18: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
1d: eb 07 jmp 0x26
1f: 0f 00 2d 27 a3 4c 00 verw 0x4ca327(%rip) # 0x4ca34d
26: fb sti
27: f4 hlt
* 28: c3 retq <-- trapping instruction
29: cc int3
2a: cc int3
2b: cc int3
2c: cc int3
2d: 41 55 push %r13
2f: 41 54 push %r12
31: 55 push %rbp
32: 48 89 fd mov %rdi,%rbp
35: 53 push %rbx
36: e8 22 63 00 f8 callq 0xf800635d
3b: e8 .byte 0xe8
3c: ad lods %ds:(%rsi),%eax
3d: 11 .byte 0x11