------------[ cut here ]------------ WARNING: CPU: 0 PID: 3549 at kernel/workqueue.c:1441 __queue_work+0xddc/0xf90 Modules linked in: CPU: 0 PID: 3549 Comm: udevd Not tainted 6.1.90-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:__queue_work+0xddc/0xf90 kernel/workqueue.c:1441 Code: 8b 3c 24 e8 86 94 88 00 e9 d9 fc ff ff e8 4c 1d 31 00 89 ee 48 c7 c7 00 96 fd 8c e8 ae e3 09 03 e9 1e fc ff ff e8 34 1d 31 00 <0f> 0b 48 83 c4 50 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 1e 1d 31 00 RSP: 0018:ffffc90000007af8 EFLAGS: 00010046 RAX: ffffffff8159701c RBX: 00000000000b0012 RCX: ffff888021e8d940 RDX: 0000000080000101 RSI: 0000000000000100 RDI: 0000000000000000 RBP: 0000000000010000 R08: ffffffff815a5dc5 R09: fffffbfff1ce7046 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: dffffc0000000000 R14: 0000000000000008 R15: ffff88807da1c000 FS: 00007f91c9d1cc80(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4944f7dfe0 CR3: 0000000072472000 CR4: 00000000003506f0 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 __do_softirq+0x2e9/0xa4c kernel/softirq.c:571 invoke_softirq kernel/softirq.c:445 [inline] __irq_exit_rcu+0x155/0x240 kernel/softirq.c:650 irq_exit_rcu+0x5/0x20 kernel/softirq.c:662 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:__read_once_word_nocheck+0x0/0x10 include/asm-generic/rwonce.h:67 Code: e1 07 38 c1 0f 8c dc fc ff ff 48 89 df e8 c8 35 a5 00 48 ba 00 00 00 00 00 fc ff df e9 c5 fc ff ff 66 0f 1f 84 00 00 00 00 00 <48> 8b 07 c3 cc cc cc cc cc cc cc cc cc cc cc cc 31 c0 81 ff 03 00 RSP: 0018:ffffc90003a5f120 EFLAGS: 00000287 RAX: ffffc90003a5fce8 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: ffffc90003a58000 RDI: ffffc90003a5fce0 RBP: ffffc90003a5f268 R08: ffffc90003a5fce0 R09: ffffc90003a5f2b0 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff9200074be4d R13: 1ffff9200074be4e R14: ffffc90003a5f260 R15: ffffc90003a60000 deref_stack_reg+0x17c/0x210 arch/x86/kernel/unwind_orc.c:360 unwind_next_frame+0x18db/0x2220 arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122 save_stack+0xf6/0x1e0 mm/page_owner.c:127 __reset_page_owner+0x52/0x1a0 mm/page_owner.c:148 reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1440 [inline] free_pcp_prepare mm/page_alloc.c:1490 [inline] free_unref_page_prepare+0xf63/0x1120 mm/page_alloc.c:3358 free_unref_page_list+0x663/0x900 mm/page_alloc.c:3499 release_pages+0x2836/0x2b40 mm/swap.c:1055 __pagevec_release+0x80/0xf0 mm/swap.c:1075 pagevec_release include/linux/pagevec.h:71 [inline] folio_batch_release include/linux/pagevec.h:135 [inline] shmem_undo_range+0x865/0x2390 mm/shmem.c:946 shmem_truncate_range mm/shmem.c:1062 [inline] shmem_evict_inode+0x265/0xa60 mm/shmem.c:1171 evict+0x2a4/0x620 fs/inode.c:666 __dentry_kill+0x436/0x650 fs/dcache.c:607 dentry_kill+0xbb/0x290 dput+0xfb/0x1d0 fs/dcache.c:914 __fput+0x5e4/0x890 fs/file_table.c:328 task_work_run+0x246/0x300 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:177 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline] syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:303 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f91c99170a8 Code: 48 8b 05 83 9d 0d 00 64 c7 00 16 00 00 00 83 c8 ff 48 83 c4 20 5b c3 64 8b 04 25 18 00 00 00 85 c0 75 20 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 5b 48 8b 15 51 9d 0d 00 f7 d8 64 89 02 48 83 RSP: 002b:00007fffa50f7c88 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 00007f91c9d1cae0 RCX: 00007f91c99170a8 RDX: 00005613b510834c RSI: 00007fffa50f7488 RDI: 0000000000000008 RBP: 00005616d47d9cf0 R08: 0000000000000006 R09: 07bbb667e5d8c365 R10: 000000000000010f R11: 0000000000000246 R12: 0000000000000002 R13: 00005616d47c9ad0 R14: 0000000000000008 R15: 00005616d47b8910 ---------------- Code disassembly (best guess): 0: e1 07 loope 0x9 2: 38 c1 cmp %al,%cl 4: 0f 8c dc fc ff ff jl 0xfffffce6 a: 48 89 df mov %rbx,%rdi d: e8 c8 35 a5 00 call 0xa535da 12: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx 19: fc ff df 1c: e9 c5 fc ff ff jmp 0xfffffce6 21: 66 0f 1f 84 00 00 00 nopw 0x0(%rax,%rax,1) 28: 00 00 * 2a: 48 8b 07 mov (%rdi),%rax <-- trapping instruction 2d: c3 ret 2e: cc int3 2f: cc int3 30: cc int3 31: cc int3 32: cc int3 33: cc int3 34: cc int3 35: cc int3 36: cc int3 37: cc int3 38: cc int3 39: cc int3 3a: 31 c0 xor %eax,%eax 3c: 81 .byte 0x81 3d: ff 03 incl (%rbx)