------------[ cut here ]------------ workqueue: cannot queue hci_cmd_timeout on wq hci3 WARNING: CPU: 0 PID: 10660 at kernel/workqueue.c:2258 __queue_work+0xd62/0xfe0 kernel/workqueue.c:2256 Modules linked in: CPU: 0 UID: 0 PID: 10660 Comm: syz.6.1714 Not tainted 6.16.0-rc4-syzkaller-00013-g66701750d556 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:__queue_work+0xd62/0xfe0 kernel/workqueue.c:2256 Code: 42 80 3c 20 00 74 08 4c 89 ef e8 c9 e3 96 00 49 8b 75 00 49 81 c7 78 01 00 00 48 c7 c7 c0 e0 89 8b 4c 89 fa e8 5f 34 f9 ff 90 <0f> 0b 90 90 e9 f1 f4 ff ff e8 90 8b 35 00 90 0f 0b 90 e9 dd fc ff RSP: 0018:ffffc90000007b08 EFLAGS: 00010046 RAX: 01afb49a5fcef400 RBX: 0000000000000100 RCX: ffff8880347c3c00 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002 RBP: 1ffff11004fec738 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1bfa9fc R12: dffffc0000000000 R13: ffff8880216bc988 R14: 0000000000000008 R15: ffff888027f63978 FS: 0000555570b8b500(0000) GS:ffff888125c84000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000000000 CR3: 00000000338d2000 CR4: 00000000003526f0 Call Trace: call_timer_fn+0x17e/0x5f0 kernel/time/timer.c:1747 expire_timers kernel/time/timer.c:1793 [inline] __run_timers kernel/time/timer.c:2372 [inline] __run_timer_base+0x646/0x860 kernel/time/timer.c:2384 run_timer_base kernel/time/timer.c:2393 [inline] run_timer_softirq+0xb7/0x180 kernel/time/timer.c:2403 handle_softirqs+0x283/0x870 kernel/softirq.c:579 __do_softirq kernel/softirq.c:613 [inline] invoke_softirq kernel/softirq.c:453 [inline] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1050 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:futex_cmd_has_timeout kernel/futex/syscalls.c:135 [inline] RIP: 0010:__do_sys_futex kernel/futex/syscalls.c:168 [inline] RIP: 0010:__se_sys_futex+0xd7/0x400 kernel/futex/syscalls.c:160 Code: ff d0 6d 00 31 ff 4c 89 f6 e8 f5 7a 0c 00 4d 85 f6 74 49 4c 89 7c 24 08 4c 89 64 24 10 45 89 e7 41 81 e7 7f fe ff ff 45 89 fc <4c> 89 e7 48 c7 c6 50 fa 16 8e e8 6a 7b 0c 00 41 83 ff 08 7e 3b 41 RSP: 0018:ffffc9000458fde0 EFLAGS: 00000202 RAX: ffffffff81b3d77b RBX: dffffc0000000000 RCX: ffff8880347c3c00 RDX: 0000000000000000 RSI: 00007f600fdb5fa0 RDI: 0000000000000000 RBP: ffffc9000458fee0 R08: ffffc9000458fe6f R09: 0000000000000000 R10: ffffc9000458fe60 R11: fffff520008b1fce R12: 0000000000000001 R13: ffffc9000458fe60 R14: 00007f600fdb5fa0 R15: 0000000000000001 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f600fb8e929 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffd09304e38 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 00007f600fdb5fa8 RCX: 00007f600fb8e929 RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f600fdb5fa8 RBP: 0000000000000000 R08: 0000000000000038 R09: 000000030930512f R10: 00007f600fdb5fa0 R11: 0000000000000246 R12: 00007f600fdb5fac R13: 00007f600fdb5fa0 R14: 0000000000001a00 R15: 0000000000000006 ---------------- Code disassembly (best guess): 0: ff d0 call *%rax 2: 6d insl (%dx),%es:(%rdi) 3: 00 31 add %dh,(%rcx) 5: ff 4c 89 f6 decl -0xa(%rcx,%rcx,4) 9: e8 f5 7a 0c 00 call 0xc7b03 e: 4d 85 f6 test %r14,%r14 11: 74 49 je 0x5c 13: 4c 89 7c 24 08 mov %r15,0x8(%rsp) 18: 4c 89 64 24 10 mov %r12,0x10(%rsp) 1d: 45 89 e7 mov %r12d,%r15d 20: 41 81 e7 7f fe ff ff and $0xfffffe7f,%r15d 27: 45 89 fc mov %r15d,%r12d * 2a: 4c 89 e7 mov %r12,%rdi <-- trapping instruction 2d: 48 c7 c6 50 fa 16 8e mov $0xffffffff8e16fa50,%rsi 34: e8 6a 7b 0c 00 call 0xc7ba3 39: 41 83 ff 08 cmp $0x8,%r15d 3d: 7e 3b jle 0x7a 3f: 41 rex.B