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WARNING: CPU: 1 PID: 9771 at net/core/gen_stats.c:157 gnet_stats_add_basic+0x4d/0x2a0 net/core/gen_stats.c:157
Modules linked in:
CPU: 1 PID: 9771 Comm: kworker/u4:6 Not tainted 5.15.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events_unbound call_usermodehelper_exec_work
RIP: 0010:gnet_stats_add_basic+0x4d/0x2a0 net/core/gen_stats.c:157
Code: 0f 84 69 01 00 00 e8 52 a1 59 fa 31 ff 65 8b 2d b9 ab e4 78 81 e5 00 01 ff 00 89 ee e8 7c a8 59 fa 85 ed 74 10 e8 33 a1 59 fa <0f> 0b 4d 85 f6 0f 84 70 01 00 00 49 c7 c7 e4 ae 6e 8d bd ff ff ff
RSP: 0018:ffffc90000dc0b98 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff88801fc0c130 RCX: 0000000000000100
RDX: ffff88801e0b9c80 RSI: ffffffff871d445d RDI: 0000000000000003
RBP: 0000000000000100 R08: 0000000000000000 R09: 0000000000000001
R10: ffffffff871d45d0 R11: 0000000000000000 R12: ffff88807cbe8e08
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32c3e000 CR3: 0000000051f55000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
est_fetch_counters+0xc3/0x160 net/core/gen_estimator.c:69
est_timer+0x92/0x730 net/core/gen_estimator.c:83
call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1421
expire_timers kernel/time/timer.c:1466 [inline]
__run_timers.part.0+0x675/0xa20 kernel/time/timer.c:1734
__run_timers kernel/time/timer.c:1715 [inline]
run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1747
__do_softirq+0x29b/0x9c2 kernel/softirq.c:558
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x123/0x180 kernel/softirq.c:636
irq_exit_rcu+0x5/0x20 kernel/softirq.c:648
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:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x38/0x70 kernel/locking/spinlock.c:194
Code: 74 24 10 e8 0a 16 21 f8 48 89 ef e8 52 8c 21 f8 81 e3 00 02 00 00 75 25 9c 58 f6 c4 02 75 2d 48 85 db 74 01 fb bf 01 00 00 00 93 77 14 f8 65 8b 05 8c ce c6 76 85 c0 74 0a 5b 5d c3 e8 a0 ed
RSP: 0018:ffffc900073777f0 EFLAGS: 00000206
RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff1fa286a
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffff88807e004240 R08: 0000000000000001 R09: ffffffff8fd0c9f7
R10: 0000000000000001 R11: 0000000000000001 R12: 1ffff92000e6ef01
R13: dffffc0000000000 R14: 0000000000000043 R15: ffffffff8b857080
task_rq_unlock kernel/sched/sched.h:1597 [inline]
cpu_cgroup_fork+0xca/0x140 kernel/sched/core.c:9925
cgroup_post_fork+0x2e6/0x8f0 kernel/cgroup/cgroup.c:6298
copy_process+0x460b/0x7590 kernel/fork.c:2409
kernel_clone+0xe7/0xac0 kernel/fork.c:2584
kernel_thread+0xb5/0xf0 kernel/fork.c:2636
call_usermodehelper_exec_work kernel/umh.c:174 [inline]
call_usermodehelper_exec_work+0xcc/0x180 kernel/umh.c:160
process_one_work+0x9bf/0x16b0 kernel/workqueue.c:2297
worker_thread+0x658/0x11f0 kernel/workqueue.c:2444
kthread+0x3e5/0x4d0 kernel/kthread.c:319
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
----------------
Code disassembly (best guess):
0: 74 24 je 0x26
2: 10 e8 adc %ch,%al
4: 0a 16 or (%rsi),%dl
6: 21 f8 and %edi,%eax
8: 48 89 ef mov %rbp,%rdi
b: e8 52 8c 21 f8 callq 0xf8218c62
10: 81 e3 00 02 00 00 and $0x200,%ebx
16: 75 25 jne 0x3d
18: 9c pushfq
19: 58 pop %rax
1a: f6 c4 02 test $0x2,%ah
1d: 75 2d jne 0x4c
1f: 48 85 db test %rbx,%rbx
22: 74 01 je 0x25
24: fb sti
25: bf 01 00 00 00 mov $0x1,%edi
* 2a: e8 93 77 14 f8 callq 0xf81477c2 <-- trapping instruction
2f: 65 8b 05 8c ce c6 76 mov %gs:0x76c6ce8c(%rip),%eax # 0x76c6cec2
36: 85 c0 test %eax,%eax
38: 74 0a je 0x44
3a: 5b pop %rbx
3b: 5d pop %rbp
3c: c3 retq
3d: e8 .byte 0xe8
3e: a0 .byte 0xa0
3f: ed in (%dx),%eax