------------[ cut here ]------------ workqueue: cannot queue hci_cmd_timeout on wq hci1 WARNING: kernel/workqueue.c:2270 at __queue_work+0xd08/0x1150 kernel/workqueue.c:2269, CPU#1: udevd/20276 Modules linked in: CPU: 1 UID: 0 PID: 20276 Comm: udevd Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 RIP: 0010:__queue_work+0xd0c/0x1150 kernel/workqueue.c:2269 Code: 00 00 00 fc ff df 49 8d 94 24 78 01 00 00 48 89 f9 48 c1 e9 03 80 3c 01 00 0f 85 04 04 00 00 48 8d 3d d8 92 0c 0f 48 8b 75 18 <67> 48 0f b9 3a e9 2a f7 ff ff e8 e5 c9 38 00 90 0f 0b 90 e9 b2 f5 RSP: 0018:ffffc90000a08be8 EFLAGS: 00010046 RAX: dffffc0000000000 RBX: 0000000000000100 RCX: 1ffff11013478151 RDX: ffff8880592b1178 RSI: ffffffff8a833ed0 RDI: ffffffff90dc64e0 RBP: ffff88809a3c0a70 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000100 R11: 0000000000000000 R12: ffff8880592b1000 R13: 1ffff9200014118f R14: ffffffff81cfe320 R15: 0000000000000001 FS: 00007f90b6fbb880(0000) GS:ffff888124448000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2daf5ff8 CR3: 000000002984a000 CR4: 00000000003526f0 Call Trace: call_timer_fn+0x19a/0x670 kernel/time/timer.c:1748 expire_timers kernel/time/timer.c:1794 [inline] __run_timers+0x570/0xb30 kernel/time/timer.c:2373 __run_timer_base kernel/time/timer.c:2385 [inline] __run_timer_base kernel/time/timer.c:2377 [inline] run_timer_base+0x114/0x190 kernel/time/timer.c:2394 run_timer_softirq+0x1a/0x50 kernel/time/timer.c:2404 handle_softirqs+0x1eb/0x9e0 kernel/softirq.c:622 __do_softirq kernel/softirq.c:656 [inline] invoke_softirq kernel/softirq.c:496 [inline] __irq_exit_rcu+0xef/0x150 kernel/softirq.c:723 irq_exit_rcu+0x9/0x30 kernel/softirq.c:739 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1056 [inline] sysvec_apic_timer_interrupt+0xa3/0xc0 arch/x86/kernel/apic/apic.c:1056 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:__seqprop_spinlock_sequence include/linux/seqlock.h:228 [inline] RIP: 0010:read_seqbegin include/linux/seqlock.h:838 [inline] RIP: 0010:read_seqbegin_or_lock include/linux/seqlock.h:1150 [inline] RIP: 0010:read_seqbegin_or_lock include/linux/seqlock.h:1146 [inline] RIP: 0010:prepend_path+0x157/0x1060 fs/d_path.c:166 Code: 75 08 48 c7 c7 48 69 41 8e e8 25 a5 49 ff 9c 5b 81 e3 00 02 00 00 31 ff 48 89 de e8 f3 6d 6d ff 58 48 85 db 0f 85 0f 0d 00 00 04 73 6d ff 48 c7 c2 40 69 41 8e 48 b8 00 00 00 00 00 fc ff df RSP: 0018:ffffc9000fbff538 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff829b3484 RDX: ffff88802db68000 RSI: ffffffff829b3493 RDI: ffffffff829b4cbb RBP: ffffc9000fbff648 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff888037cc8ffe R13: 1ffff92001f7feb7 R14: dffffc0000000000 R15: ffff888037cc8ffd d_absolute_path+0xfb/0x1b0 fs/d_path.c:234 tomoyo_get_absolute_path security/tomoyo/realpath.c:101 [inline] tomoyo_realpath_from_path+0x358/0x690 security/tomoyo/realpath.c:271 tomoyo_get_realpath security/tomoyo/file.c:151 [inline] tomoyo_check_open_permission+0x2af/0x3c0 security/tomoyo/file.c:776 tomoyo_file_open+0x6b/0x90 security/tomoyo/tomoyo.c:334 security_file_open+0xb5/0x1e0 security/security.c:2636 do_dentry_open+0x5aa/0x1660 fs/open.c:926 vfs_open+0x82/0x3f0 fs/open.c:1081 do_open fs/namei.c:4671 [inline] path_openat+0x208c/0x31a0 fs/namei.c:4830 do_file_open+0x20e/0x430 fs/namei.c:4859 do_sys_openat2+0x10d/0x1e0 fs/open.c:1366 do_sys_open fs/open.c:1372 [inline] __do_sys_openat fs/open.c:1388 [inline] __se_sys_openat fs/open.c:1383 [inline] __x64_sys_openat+0x12d/0x210 fs/open.c:1383 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f90b68a7407 Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff RSP: 002b:00007fffe52b33a0 EFLAGS: 00000202 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f90b6fbb880 RCX: 00007f90b68a7407 RDX: 0000000000080000 RSI: 000055d660d0c6f0 RDI: ffffffffffffff9c RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 000055d637dbb95f R13: 000055d637dcc660 R14: 0000000000000000 R15: 00000000ffffffff ---------------- Code disassembly (best guess): 0: 00 00 add %al,(%rax) 2: 00 fc add %bh,%ah 4: ff lcall (bad) 5: df 49 8d fisttps -0x73(%rcx) 8: 94 xchg %eax,%esp 9: 24 78 and $0x78,%al b: 01 00 add %eax,(%rax) d: 00 48 89 add %cl,-0x77(%rax) 10: f9 stc 11: 48 c1 e9 03 shr $0x3,%rcx 15: 80 3c 01 00 cmpb $0x0,(%rcx,%rax,1) 19: 0f 85 04 04 00 00 jne 0x423 1f: 48 8d 3d d8 92 0c 0f lea 0xf0c92d8(%rip),%rdi # 0xf0c92fe 26: 48 8b 75 18 mov 0x18(%rbp),%rsi * 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2f: e9 2a f7 ff ff jmp 0xfffff75e 34: e8 e5 c9 38 00 call 0x38ca1e 39: 90 nop 3a: 0f 0b ud2 3c: 90 nop 3d: e9 .byte 0xe9 3e: b2 f5 mov $0xf5,%dl