------------[ cut here ]------------ WARNING: CPU: 1 PID: 3683 at kernel/workqueue.c:1441 __queue_work+0xddc/0xf90 Modules linked in: CPU: 1 PID: 3683 Comm: kworker/1:3 Not tainted 6.1.112-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: events pwq_unbound_release_workfn RIP: 0010:__queue_work+0xddc/0xf90 kernel/workqueue.c:1441 Code: 8b 3c 24 e8 a6 a0 88 00 e9 d9 fc ff ff e8 6c 1e 31 00 89 ee 48 c7 c7 80 99 1d 8d e8 1e 6c 0b 03 e9 1e fc ff ff e8 54 1e 31 00 <0f> 0b 48 83 c4 50 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 3e 1e 31 00 RSP: 0018:ffffc900001e0af8 EFLAGS: 00010046 RAX: ffffffff815990ec RBX: 00000000000b0012 RCX: ffff88807d535940 RDX: 0000000000000100 RSI: 0000000000000100 RDI: 0000000000000000 RBP: 0000000000010000 R08: ffffffff815a7e95 R09: fffffbfff1d33f2e R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: dffffc0000000000 R14: 0000000000000008 R15: ffff88801bea2000 FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f98bac82000 CR3: 000000007d226000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: 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 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653 RIP: 0010:synchronize_rcu+0x0/0x3f0 kernel/rcu/tree.c:3566 Code: 5e 41 5f e9 62 00 e6 ff 5b 41 5c 41 5e 41 5f c3 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c d9 fe ff ff e8 d5 95 6e 00 e9 cf fe ff ff <55> 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48 81 ec 40 01 RSP: 0018:ffffc9000478fb38 EFLAGS: 00000206 RAX: dffffc0000000000 RBX: 1ffff920008f1f70 RCX: ffffffff97334103 RDX: 0000777d5b6e3801 RSI: ffffffff8b0c1020 RDI: ffffffff8b5d7180 RBP: ffffc9000478fc08 R08: ffffffff813dc24d R09: fffffbfff1d33f2e R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88807baf9128 R13: 1ffff920008f1f6c R14: 0000000000000a06 R15: ffffc9000478fb80 lockdep_unregister_key+0x537/0x5e0 kernel/locking/lockdep.c:6355 wq_unregister_lockdep kernel/workqueue.c:3500 [inline] pwq_unbound_release_workfn+0x23d/0x290 kernel/workqueue.c:3738 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 ---------------- Code disassembly (best guess): 0: 5e pop %rsi 1: 41 5f pop %r15 3: e9 62 00 e6 ff jmp 0xffe6006a 8: 5b pop %rbx 9: 41 5c pop %r12 b: 41 5e pop %r14 d: 41 5f pop %r15 f: c3 ret 10: 89 f9 mov %edi,%ecx 12: 80 e1 07 and $0x7,%cl 15: 80 c1 03 add $0x3,%cl 18: 38 c1 cmp %al,%cl 1a: 0f 8c d9 fe ff ff jl 0xfffffef9 20: e8 d5 95 6e 00 call 0x6e95fa 25: e9 cf fe ff ff jmp 0xfffffef9 * 2a: 55 push %rbp <-- trapping instruction 2b: 48 89 e5 mov %rsp,%rbp 2e: 41 57 push %r15 30: 41 56 push %r14 32: 41 55 push %r13 34: 41 54 push %r12 36: 53 push %rbx 37: 48 83 e4 e0 and $0xffffffffffffffe0,%rsp 3b: 48 rex.W 3c: 81 .byte 0x81 3d: ec in (%dx),%al 3e: 40 rex 3f: 01 .byte 0x1