------------[ cut here ]------------
WARNING: CPU: 1 PID: 9062 at kernel/workqueue.c:2257 __queue_work+0xcd3/0xf50 kernel/workqueue.c:2256
Modules linked in:
CPU: 1 UID: 0 PID: 9062 Comm: syz.1.875 Not tainted 6.13.0-rc2-syzkaller-00457-gd3c9510dc900 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
RIP: 0010:__queue_work+0xcd3/0xf50 kernel/workqueue.c:2256
Code: ff e8 71 e8 37 00 90 0f 0b 90 e9 b2 fe ff ff e8 63 e8 37 00 eb 13 e8 5c e8 37 00 eb 0c e8 55 e8 37 00 eb 05 e8 4e e8 37 00 90 <0f> 0b 90 48 83 c4 60 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc
RSP: 0018:ffffc90000a18b08 EFLAGS: 00010046
RAX: ffffffff816775dd RBX: 0000000000000100 RCX: ffff88805cab9e00
RDX: 0000000000000100 RSI: 0000000000000100 RDI: 0000000000000000
RBP: 0000000000010000 R08: ffffffff81676a08 R09: 1ffffffff203419e
R10: dffffc0000000000 R11: ffffffff81677e10 R12: ffff888025e86800
R13: ffff888025e869c0 R14: dffffc0000000000 R15: 0000000000000008
FS:  00007fdab5a4e6c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2a83a3 CR3: 000000003463e000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 call_timer_fn+0x187/0x650 kernel/time/timer.c:1793
 expire_timers kernel/time/timer.c:1839 [inline]
 __run_timers kernel/time/timer.c:2418 [inline]
 __run_timer_base+0x695/0x8e0 kernel/time/timer.c:2430
 run_timer_base kernel/time/timer.c:2439 [inline]
 run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2449
 handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561
 __do_softirq kernel/softirq.c:595 [inline]
 invoke_softirq kernel/softirq.c:435 [inline]
 __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:662
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:678
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:put_mnt_ns+0x0/0x120 fs/namespace.c:5676
Code: df e8 24 7c e4 ff e9 26 ff ff ff e8 ca 84 a9 09 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <66> 0f 1f 00 55 41 56 53 48 89 fb e8 d0 19 7e ff 4c 8d 73 14 4c 89
RSP: 0018:ffffc900032f7d88 EFLAGS: 00000283
RAX: ffffffff816b3cb5 RBX: ffff88806054e500 RCX: 0000000000080000
RDX: ffffc9000d67c000 RSI: 0000000000000bf6 RDI: ffff88806054e500
RBP: ffffc900032f7f00 R08: ffffffff816b43bc R09: 1ffff11004e8be0d
R10: dffffc0000000000 R11: ffffed1004e8be0e R12: dffffc0000000000
R13: ffffc900032f7e60 R14: ffff88802745f068 R15: 0000000000000000
 free_nsproxy+0x4d/0x3c0 kernel/nsproxy.c:193
 commit_nsset kernel/nsproxy.c:542 [inline]
 __do_sys_setns kernel/nsproxy.c:578 [inline]
 __se_sys_setns+0x9cd/0x1bc0 kernel/nsproxy.c:546
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fdab4b87557
Code: 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 34 01 00 00 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:00007fdab5a4dfd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000134
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fdab4b87557
RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000005
RBP: 0000000000000006 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fdab5a4e668
R13: 000000000000000e R14: 00007fdab4d75fa0 R15: 00007fffde3008c8
 </TASK>
----------------
Code disassembly (best guess):
   0:	df e8                	fucomip %st(0),%st
   2:	24 7c                	and    $0x7c,%al
   4:	e4 ff                	in     $0xff,%al
   6:	e9 26 ff ff ff       	jmp    0xffffff31
   b:	e8 ca 84 a9 09       	call   0x9a984da
  10:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  17:	00 00 00
  1a:	90                   	nop
  1b:	90                   	nop
  1c:	90                   	nop
  1d:	90                   	nop
  1e:	90                   	nop
  1f:	90                   	nop
  20:	90                   	nop
  21:	90                   	nop
  22:	90                   	nop
  23:	90                   	nop
  24:	90                   	nop
  25:	90                   	nop
  26:	90                   	nop
  27:	90                   	nop
  28:	90                   	nop
  29:	90                   	nop
* 2a:	66 0f 1f 00          	nopw   (%rax) <-- trapping instruction
  2e:	55                   	push   %rbp
  2f:	41 56                	push   %r14
  31:	53                   	push   %rbx
  32:	48 89 fb             	mov    %rdi,%rbx
  35:	e8 d0 19 7e ff       	call   0xff7e1a0a
  3a:	4c 8d 73 14          	lea    0x14(%rbx),%r14
  3e:	4c                   	rex.WR
  3f:	89                   	.byte 0x89