------------[ cut here ]------------
WARNING: CPU: 0 PID: 14 at kernel/workqueue.c:1441 __queue_work+0xddc/0xf90
Modules linked in:
CPU: 0 PID: 14 Comm: kworker/0:1 Not tainted 6.1.118-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
Workqueue: events free_ipc
RIP: 0010:__queue_work+0xddc/0xf90 kernel/workqueue.c:1441
Code: 8b 3c 24 e8 36 77 88 00 e9 d9 fc ff ff e8 dc f3 30 00 89 ee 48 c7 c7 c0 98 1d 8d e8 5e 91 0b 03 e9 1e fc ff ff e8 c4 f3 30 00 <0f> 0b 48 83 c4 50 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 ae f3 30 00
RSP: 0018:ffffc90000007af8 EFLAGS: 00010046
RAX: ffffffff8159982c RBX: 00000000000b0012 RCX: ffff888017f19dc0
RDX: 0000000000000100 RSI: 0000000000000100 RDI: 0000000000000000
RBP: 0000000000010000 R08: ffffffff815a85d5 R09: fffffbfff1d3415e
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: dffffc0000000000 R14: 0000000000000008 R15: ffff88805cf96000
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffcd2c09f18 CR3: 000000000d08e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 call_timer_fn+0x1ad/0x6b0 kernel/time/timer.c:1504
 expire_timers kernel/time/timer.c:1544 [inline]
 __run_timers+0x6a8/0x890 kernel/time/timer.c:1820
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1833
 handle_softirqs+0x2ee/0xa40 kernel/softirq.c:571
 __do_softirq kernel/softirq.c:605 [inline]
 invoke_softirq kernel/softirq.c:445 [inline]
 __irq_exit_rcu+0x157/0x240 kernel/softirq.c:654
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:666
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:raw_spin_rq_unlock_irq+0x19/0x80 kernel/sched/sched.h:1368
Code: 07 80 c1 03 38 c1 7c d1 e8 34 50 81 00 eb ca 0f 0b 41 57 41 56 53 48 89 fb 66 90 48 89 df e8 2e 17 51 09 e8 49 8d 30 00 fb 5b <41> 5e 41 5f c3 49 bf 00 00 00 00 00 fc ff df 4c 8d b3 58 0d 00 00
RSP: 0018:ffffc900001376e8 EFLAGS: 00000282
RAX: 1d1e6095d9e4a600 RBX: ffff8880b8e3a9c0 RCX: ffffffff816b024a
RDX: dffffc0000000000 RSI: ffffffff8b0c01c0 RDI: ffffffff8b5d7800
RBP: ffffc900001378b0 R08: dffffc0000000000 R09: fffffbfff224626d
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff11002fe340a R14: ffff888017f1a050 R15: ffff888017f19dc0
 __schedule+0x16bc/0x4570 kernel/sched/core.c:6564
 preempt_schedule_common+0x83/0xd0 kernel/sched/core.c:6727
 preempt_schedule+0xd9/0xe0 kernel/sched/core.c:6751
 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:34
 __raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
 _raw_spin_unlock+0x36/0x40 kernel/locking/spinlock.c:186
 spin_unlock include/linux/spinlock.h:391 [inline]
 d_find_alias+0x199/0x1e0 fs/dcache.c:1072
 proc_invalidate_siblings_dcache+0x406/0x6e0 fs/proc/inode.c:153
 proc_sys_invalidate_dcache fs/proc/proc_sysctl.c:287 [inline]
 start_unregistering fs/proc/proc_sysctl.c:312 [inline]
 drop_sysctl_table+0x173/0x460 fs/proc/proc_sysctl.c:1723
 unregister_sysctl_table+0x86/0x130 fs/proc/proc_sysctl.c:1765
 retire_ipc_sysctls+0x5a/0x80 ipc/ipc_sysctl.c:310
 free_ipc_ns ipc/namespace.c:142 [inline]
 free_ipc+0x94/0x1d0 ipc/namespace.c:157
 process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
 worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
 kthread+0x28d/0x320 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	80 c1 03             	add    $0x3,%cl
   3:	38 c1                	cmp    %al,%cl
   5:	7c d1                	jl     0xffffffd8
   7:	e8 34 50 81 00       	call   0x815040
   c:	eb ca                	jmp    0xffffffd8
   e:	0f 0b                	ud2
  10:	41 57                	push   %r15
  12:	41 56                	push   %r14
  14:	53                   	push   %rbx
  15:	48 89 fb             	mov    %rdi,%rbx
  18:	66 90                	xchg   %ax,%ax
  1a:	48 89 df             	mov    %rbx,%rdi
  1d:	e8 2e 17 51 09       	call   0x9511750
  22:	e8 49 8d 30 00       	call   0x308d70
  27:	fb                   	sti
  28:	5b                   	pop    %rbx
* 29:	41 5e                	pop    %r14 <-- trapping instruction
  2b:	41 5f                	pop    %r15
  2d:	c3                   	ret
  2e:	49 bf 00 00 00 00 00 	movabs $0xdffffc0000000000,%r15
  35:	fc ff df
  38:	4c 8d b3 58 0d 00 00 	lea    0xd58(%rbx),%r14