------------[ cut here ]------------
NETDEV WATCHDOG: sl0 (): transmit queue 0 timed out
WARNING: CPU: 0 PID: 8743 at net/sched/sch_generic.c:478 dev_watchdog+0x8d3/0xab0 net/sched/sch_generic.c:477
Modules linked in:
CPU: 0 PID: 8743 Comm: syz.0.1797 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:dev_watchdog+0x8d3/0xab0 net/sched/sch_generic.c:477
Code: f9 c6 05 24 e7 61 05 01 4c 8b 74 24 28 4c 89 f7 e8 22 4c e4 ff 48 c7 c7 40 b2 01 8b 4c 89 f6 48 89 c2 44 89 e1 e8 cd 5b aa 01 <0f> 0b e9 31 fe ff ff e8 21 be 83 f9 0f 0b e9 13 fe ff ff 44 89 e1
RSP: 0018:ffffc90000007b08 EFLAGS: 00010246
RAX: ffa21a3f54780200 RBX: dffffc0000000000 RCX: ffff88807c110000
RDX: 0000000000000100 RSI: 0000000000000102 RDI: 0000000000000000
RBP: ffff888079e0f468 R08: dffffc0000000000 R09: fffff52000000ec5
R10: fffff52000000ec5 R11: 1ffff92000000ec4 R12: 0000000000000000
R13: ffff88807e026540 R14: ffff88807e026000 R15: dffffc0000000000
FS:  00007ff3184dd6c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000000 CR3: 000000005c210000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 call_timer_fn+0x16c/0x530 kernel/time/timer.c:1451
 expire_timers kernel/time/timer.c:1496 [inline]
 __run_timers+0x525/0x7c0 kernel/time/timer.c:1767
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1780
 handle_softirqs+0x328/0x820 kernel/softirq.c:576
 __do_softirq kernel/softirq.c:610 [inline]
 invoke_softirq kernel/softirq.c:450 [inline]
 __irq_exit_rcu+0x12f/0x220 kernel/softirq.c:659
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:account_kernel_stack+0x209/0x340 kernel/fork.c:387
Code: 85 db 75 1c e8 78 05 31 00 49 83 fd 38 75 1d eb 29 e8 6b 05 31 00 e8 a6 69 62 08 48 85 db 74 e4 e8 5c 05 31 00 fb 49 83 fd 38 <74> 0e e8 50 05 31 00 49 83 c5 08 e9 dc fe ff ff e8 42 05 31 00 4c
RSP: 0018:ffffc9000c6cf660 EFLAGS: 00000297
RAX: ffffffff8146c4f4 RBX: 0000000000000200 RCX: ffff88807c110000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000c6cf768 R08: dffffc0000000000 R09: fffffbfff1ad32b6
R10: fffffbfff1ad32b6 R11: 1ffffffff1ad32b5 R12: 1ffff1100f99e914
R13: 0000000000000010 R14: ffff88807ccf48a0 R15: 0000000000000000
 release_task_stack kernel/fork.c:432 [inline]
 put_task_stack+0x8f/0x140 kernel/fork.c:444
 finish_task_switch+0x26f/0x640 kernel/sched/core.c:4961
 context_switch kernel/sched/core.c:5052 [inline]
 __schedule+0x11c3/0x4390 kernel/sched/core.c:6395
 preempt_schedule_common+0x82/0xd0 kernel/sched/core.c:6571
 preempt_schedule+0xa7/0xb0 kernel/sched/core.c:6596
 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:34
 try_to_wake_up+0x701/0x1050 kernel/sched/core.c:4171
 wake_up_process kernel/sched/core.c:4234 [inline]
 wake_up_q+0x78/0xc0 kernel/sched/core.c:953
 futex_wake+0x49f/0x530 kernel/futex/core.c:1702
 do_futex+0xcde/0x1240 kernel/futex/core.c:3987
 __do_sys_futex kernel/futex/core.c:4059 [inline]
 __se_sys_futex+0x3a3/0x430 kernel/futex/core.c:4040
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7ff31926d929
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff3184dd0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007ff319494fa8 RCX: 00007ff31926d929
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007ff319494fac
RBP: 00007ff319494fa0 R08: 0018d1fd652fe6b0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff319494fac
R13: 0000000000000000 R14: 00007ffc0343d520 R15: 00007ffc0343d608
 </TASK>
----------------
Code disassembly (best guess):
   0:	85 db                	test   %ebx,%ebx
   2:	75 1c                	jne    0x20
   4:	e8 78 05 31 00       	call   0x310581
   9:	49 83 fd 38          	cmp    $0x38,%r13
   d:	75 1d                	jne    0x2c
   f:	eb 29                	jmp    0x3a
  11:	e8 6b 05 31 00       	call   0x310581
  16:	e8 a6 69 62 08       	call   0x86269c1
  1b:	48 85 db             	test   %rbx,%rbx
  1e:	74 e4                	je     0x4
  20:	e8 5c 05 31 00       	call   0x310581
  25:	fb                   	sti
  26:	49 83 fd 38          	cmp    $0x38,%r13
* 2a:	74 0e                	je     0x3a <-- trapping instruction
  2c:	e8 50 05 31 00       	call   0x310581
  31:	49 83 c5 08          	add    $0x8,%r13
  35:	e9 dc fe ff ff       	jmp    0xffffff16
  3a:	e8 42 05 31 00       	call   0x310581
  3f:	4c                   	rex.WR