------------[ cut here ]------------
WARNING: CPU: 1 PID: 20 at net/core/skbuff.c:5295 skb_try_coalesce+0x1508/0x1900 net/core/skbuff.c:5295
Modules linked in:
CPU: 1 PID: 20 Comm: ksoftirqd/1 Tainted: G W 5.17.0-syzkaller-04443-ged4643521e6a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:skb_try_coalesce+0x1508/0x1900 net/core/skbuff.c:5295
Code: 48 85 c0 0f 84 a9 f2 ff ff e8 54 0a 42 fa 49 8d 45 ff 48 89 44 24 20 49 8d 45 07 48 89 44 24 68 e9 8d f2 ff ff e8 38 0a 42 fa <0f> 0b e9 02 f7 ff ff e8 2c 0a 42 fa 48 8b 44 24 30 be 04 00 00 00
RSP: 0018:ffffc90000dd0498 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 00000000fffffea8 RCX: 0000000000000100
RDX: ffff8880119c8000 RSI: ffffffff8736b378 RDI: 0000000000000003
RBP: ffff888074fe6500 R08: 00000000fffffea8 R09: 0000000000000000
R10: ffffffff8736aa78 R11: 0000000000000000 R12: ffff888026449280
R13: 0000000000000001 R14: ffff88814a413ac0 R15: 0000000000000028
FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020019000 CR3: 00000000726be000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
tcp_try_coalesce net/ipv4/tcp_input.c:4651 [inline]
tcp_try_coalesce+0x393/0x920 net/ipv4/tcp_input.c:4630
tcp_queue_rcv+0x8a/0x6e0 net/ipv4/tcp_input.c:4914
tcp_data_queue+0x11fd/0x4bb0 net/ipv4/tcp_input.c:5025
tcp_rcv_established+0x81e/0x1ff0 net/ipv4/tcp_input.c:5947
tcp_v4_do_rcv+0x65e/0x980 net/ipv4/tcp_ipv4.c:1719
tcp_v4_rcv+0x27d7/0x3170 net/ipv4/tcp_ipv4.c:2119
ip_protocol_deliver_rcu+0xa3/0xf30 net/ipv4/ip_input.c:204
ip_local_deliver_finish+0x20a/0x370 net/ipv4/ip_input.c:231
NF_HOOK include/linux/netfilter.h:307 [inline]
NF_HOOK include/linux/netfilter.h:301 [inline]
ip_local_deliver+0x1b3/0x200 net/ipv4/ip_input.c:252
dst_input include/net/dst.h:461 [inline]
ip_rcv_finish+0x1cb/0x2f0 net/ipv4/ip_input.c:429
NF_HOOK include/linux/netfilter.h:307 [inline]
NF_HOOK include/linux/netfilter.h:301 [inline]
ip_rcv+0xaa/0xd0 net/ipv4/ip_input.c:540
deliver_skb net/core/dev.c:2135 [inline]
deliver_ptype_list_skb net/core/dev.c:2150 [inline]
__netif_receive_skb_core+0xf94/0x3850 net/core/dev.c:5307
__netif_receive_skb_one_core+0xae/0x180 net/core/dev.c:5349
__netif_receive_skb+0x24/0x1b0 net/core/dev.c:5465
process_backlog+0x3a0/0x800 net/core/dev.c:5797
__napi_poll+0xb3/0x6e0 net/core/dev.c:6365
napi_poll net/core/dev.c:6432 [inline]
net_rx_action+0x8ec/0xc60 net/core/dev.c:6519
__do_softirq+0x29b/0x9c2 kernel/softirq.c:558
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x123/0x180 kernel/softirq.c:637
irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:__sanitizer_cov_trace_switch+0xde/0xf0 kernel/kcov.c:314
Code: ca 75 95 5b 5d 41 5c 41 5d c3 48 83 f8 40 bb 07 00 00 00 0f 84 6c ff ff ff 5b 5d 41 5c 41 5d c3 bb 01 00 00 00 e9 5b ff ff ff 05 00 00 00 e9 51 ff ff ff 0f 1f 84 00 00 00 00 00 41 57 49 89
RSP: 0018:ffffc90000da7ea8 EFLAGS: 00000246
RAX: 0000000000000020 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff89abd3c0 RDI: 0000000000000001
RBP: ffff888010dc7340 R08: ffffffff89abd3c0 R09: 0000000000000000
R10: ffffffff814fcf4e R11: 0000000000000001 R12: ffffffff8ba37f60
R13: ffff888010dc7344 R14: ffff8880119c8000 R15: 0000000000000001
smpboot_thread_fn+0x272/0x9c0 kernel/smpboot.c:140
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
----------------
Code disassembly (best guess):
0: ca 75 95 lret $0x9575
3: 5b pop %rbx
4: 5d pop %rbp
5: 41 5c pop %r12
7: 41 5d pop %r13
9: c3 retq
a: 48 83 f8 40 cmp $0x40,%rax
e: bb 07 00 00 00 mov $0x7,%ebx
13: 0f 84 6c ff ff ff je 0xffffff85
19: 5b pop %rbx
1a: 5d pop %rbp
1b: 41 5c pop %r12
1d: 41 5d pop %r13
1f: c3 retq
20: bb 01 00 00 00 mov $0x1,%ebx
25: e9 5b ff ff ff jmpq 0xffffff85
* 2a: bb 05 00 00 00 mov $0x5,%ebx <-- trapping instruction
2f: e9 51 ff ff ff jmpq 0xffffff85
34: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1)
3b: 00
3c: 41 57 push %r15
3e: 49 rex.WB
3f: 89 .byte 0x89