------------[ cut here ]------------ WARNING: CPU: 0 PID: 5866 at kernel/workqueue.c:2257 __queue_work+0xcd3/0xf50 kernel/workqueue.c:2256 Modules linked in: CPU: 0 UID: 0 PID: 5866 Comm: udevd Not tainted 6.12.0-rc6-next-20241108-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 RIP: 0010:__queue_work+0xcd3/0xf50 kernel/workqueue.c:2256 Code: ff e8 11 01 38 00 90 0f 0b 90 e9 1e fd ff ff e8 03 01 38 00 eb 13 e8 fc 00 38 00 eb 0c e8 f5 00 38 00 eb 05 e8 ee 00 38 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:ffffc90000007b28 EFLAGS: 00010046 RAX: ffffffff81677b0d RBX: 0000000000000100 RCX: ffff88803517da00 RDX: 0000000000000100 RSI: 0000000000000100 RDI: 0000000000000000 RBP: 0000000000010000 R08: ffffffff81676f38 R09: 1ffffffff203910e R10: dffffc0000000000 R11: ffffffff81678340 R12: ffff88807f410800 R13: ffff88807f4109c0 R14: dffffc0000000000 R15: 0000000000000008 FS: 00007fa2f593cc80(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f46d380746c CR3: 000000003187e000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: call_timer_fn+0x18e/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+0x2c5/0x980 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:655 irq_exit_rcu+0x9/0x30 kernel/softirq.c:671 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 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:unwind_next_frame+0xe61/0x22d0 Code: 9f 0d 00 00 80 3d c8 48 e5 0c 01 0f 85 bf 0a 00 00 80 3d e1 4a d0 11 00 0f 85 b2 0a 00 00 c6 05 d4 4a d0 11 01 e9 9c 04 00 00 <48> 89 5c 24 40 48 89 6c 24 48 4c 89 7c 24 28 49 8d 5d 08 49 89 df RSP: 0018:ffffc90003fb73d0 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 1ffffffff228f361 RCX: ffffffff909b672c RDX: ffffffff91479b04 RSI: 0000000000000003 RDI: ffffffff814ba920 RBP: ffffffff91479b09 R08: 0000000000000021 R09: ffffc90003fb7590 R10: ffffc90003fb74f0 R11: ffffffff818b2c40 R12: dffffc0000000000 R13: ffffc90003fb74a0 R14: ffffc90003fb74d8 R15: ffffffff91479b08 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:582 poison_slab_object mm/kasan/common.c:247 [inline] __kasan_slab_free+0x59/0x70 mm/kasan/common.c:264 kasan_slab_free include/linux/kasan.h:233 [inline] slab_free_hook mm/slub.c:2338 [inline] slab_free mm/slub.c:4598 [inline] kmem_cache_free+0x195/0x410 mm/slub.c:4700 file_free+0x24/0x200 fs/file_table.c:68 path_openat+0x2ee0/0x3590 fs/namei.c:3996 do_filp_open+0x27f/0x4e0 fs/namei.c:4014 do_sys_openat2+0x13e/0x1d0 fs/open.c:1402 do_sys_open fs/open.c:1417 [inline] __do_sys_openat fs/open.c:1433 [inline] __se_sys_openat fs/open.c:1428 [inline] __x64_sys_openat+0x247/0x2a0 fs/open.c:1428 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: 0033:0x7fa2f55169a4 Code: 24 20 48 8d 44 24 30 48 89 44 24 28 64 8b 04 25 18 00 00 00 85 c0 75 2c 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 76 60 48 8b 15 55 a4 0d 00 f7 d8 64 89 02 48 83 RSP: 002b:00007ffd5c3efc30 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007fa2f55169a4 RDX: 0000000000080000 RSI: 00007ffd5c3efd68 RDI: 00000000ffffff9c RBP: 00007ffd5c3efd68 R08: 0000000000000008 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000080000 R13: 0000555a94494b42 R14: 0000000000000001 R15: 0000555a944b0160 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: 00 00 add %al,(%rax) 2: 80 3d c8 48 e5 0c 01 cmpb $0x1,0xce548c8(%rip) # 0xce548d1 9: 0f 85 bf 0a 00 00 jne 0xace f: 80 3d e1 4a d0 11 00 cmpb $0x0,0x11d04ae1(%rip) # 0x11d04af7 16: 0f 85 b2 0a 00 00 jne 0xace 1c: c6 05 d4 4a d0 11 01 movb $0x1,0x11d04ad4(%rip) # 0x11d04af7 23: e9 9c 04 00 00 jmp 0x4c4 * 28: 48 89 5c 24 40 mov %rbx,0x40(%rsp) <-- trapping instruction 2d: 48 89 6c 24 48 mov %rbp,0x48(%rsp) 32: 4c 89 7c 24 28 mov %r15,0x28(%rsp) 37: 49 8d 5d 08 lea 0x8(%r13),%rbx 3b: 49 89 df mov %rbx,%r15