------------[ cut here ]------------ workqueue: cannot queue hci_cmd_timeout on wq hci2 WARNING: CPU: 2 PID: 0 at kernel/workqueue.c:2257 __queue_work+0xc9c/0x10f0 kernel/workqueue.c:2256 Modules linked in: CPU: 2 UID: 0 PID: 0 Comm: swapper/2 Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:__queue_work+0xc9c/0x10f0 kernel/workqueue.c:2256 Code: 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 28 04 00 00 48 8b 75 18 4c 89 fa 48 c7 c7 e0 f2 6b 8b e8 05 32 f7 ff 90 <0f> 0b 90 90 e9 96 f7 ff ff e8 76 03 37 00 90 0f 0b 90 e9 1b f6 ff RSP: 0018:ffffc90000558be8 EFLAGS: 00010082 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff817a2269 RDX: ffff88801bb72440 RSI: ffffffff817a2276 RDI: 0000000000000001 RBP: ffff888078848930 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 1ffff920000ab18f R13: 0000000000000001 R14: 0000000080000101 R15: ffff88807682c978 FS: 0000000000000000(0000) GS:ffff88802b600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000f7155070 CR3: 000000006c314000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: call_timer_fn+0x1a0/0x610 kernel/time/timer.c:1789 expire_timers kernel/time/timer.c:1835 [inline] __run_timers+0x56a/0x930 kernel/time/timer.c:2414 __run_timer_base kernel/time/timer.c:2426 [inline] __run_timer_base kernel/time/timer.c:2418 [inline] run_timer_base+0x114/0x190 kernel/time/timer.c:2435 run_timer_softirq+0x1a/0x40 kernel/time/timer.c:2445 handle_softirqs+0x213/0x8f0 kernel/softirq.c:561 __do_softirq kernel/softirq.c:595 [inline] invoke_softirq kernel/softirq.c:435 [inline] __irq_exit_rcu+0x109/0x170 kernel/softirq.c:662 irq_exit_rcu+0x9/0x30 kernel/softirq.c:678 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline] RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:92 [inline] RIP: 0010:default_idle+0xf/0x20 arch/x86/kernel/process.c:744 Code: 4c 01 c7 4c 29 c2 e9 72 ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d 53 20 11 00 fb f4 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 RSP: 0018:ffffc9000049fe08 EFLAGS: 00000206 RAX: 000000000033f88b RBX: 0000000000000002 RCX: ffffffff8b557469 RDX: 0000000000000000 RSI: ffffffff8b6cfc80 RDI: ffffffff8bd35960 RBP: ffffed100376e488 R08: 0000000000000001 R09: ffffed10056c6f85 R10: ffff88802b637c2b R11: 0000000000000000 R12: 0000000000000002 R13: ffff88801bb72440 R14: ffffffff90628e10 R15: 0000000000000000 default_idle_call+0x6d/0xb0 kernel/sched/idle.c:117 cpuidle_idle_call kernel/sched/idle.c:185 [inline] do_idle+0x329/0x3f0 kernel/sched/idle.c:325 cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:423 start_secondary+0x222/0x2b0 arch/x86/kernel/smpboot.c:315 common_startup_64+0x13e/0x148 ---------------- Code disassembly (best guess): 0: 4c 01 c7 add %r8,%rdi 3: 4c 29 c2 sub %r8,%rdx 6: e9 72 ff ff ff jmp 0xffffff7d b: 90 nop c: 90 nop d: 90 nop e: 90 nop f: 90 nop 10: 90 nop 11: 90 nop 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop 16: 90 nop 17: 90 nop 18: 90 nop 19: 90 nop 1a: 90 nop 1b: f3 0f 1e fa endbr64 1f: eb 07 jmp 0x28 21: 0f 00 2d 53 20 11 00 verw 0x112053(%rip) # 0x11207b 28: fb sti 29: f4 hlt * 2a: fa cli <-- trapping instruction 2b: c3 ret 2c: cc int3 2d: cc int3 2e: cc int3 2f: cc int3 30: 66 66 2e 0f 1f 84 00 data16 cs nopw 0x0(%rax,%rax,1) 37: 00 00 00 00 3b: 90 nop 3c: 90 nop 3d: 90 nop 3e: 90 nop 3f: 90 nop