------------[ cut here ]------------ workqueue: cannot queue hci_cmd_timeout on wq hci4 WARNING: CPU: 2 PID: 7083 at kernel/workqueue.c:2257 __queue_work+0xc9c/0x10f0 kernel/workqueue.c:2256 Modules linked in: CPU: 2 UID: 0 PID: 7083 Comm: udevd Not tainted 6.16.0-rc5-syzkaller-00224-g379f604cc3dc #0 PREEMPT(full) 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 f2 48 c7 c7 c0 07 ac 8b e8 f5 16 f7 ff 90 <0f> 0b 90 90 e9 96 f7 ff ff e8 e6 1d 38 00 90 0f 0b 90 e9 1b f6 ff RSP: 0018:ffffc90000648be8 EFLAGS: 00010082 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff817af1a8 RDX: ffff888058ccc880 RSI: ffffffff817af1b5 RDI: 0000000000000001 RBP: ffff8880563e0970 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 1ffff920000c918f R13: 0000000000000101 R14: ffff888024802178 R15: 0000000000000001 FS: 00007fbff4c01880(0000) GS:ffff8880d6913000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d8ffff8 CR3: 0000000025895000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000004144 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: call_timer_fn+0x19a/0x620 kernel/time/timer.c:1747 expire_timers kernel/time/timer.c:1793 [inline] __run_timers+0x569/0x960 kernel/time/timer.c:2372 __run_timer_base kernel/time/timer.c:2384 [inline] __run_timer_base kernel/time/timer.c:2376 [inline] run_timer_base+0x114/0x190 kernel/time/timer.c:2393 run_timer_softirq+0x1a/0x40 kernel/time/timer.c:2403 handle_softirqs+0x219/0x8e0 kernel/softirq.c:579 __do_softirq kernel/softirq.c:613 [inline] invoke_softirq kernel/softirq.c:453 [inline] __irq_exit_rcu+0x109/0x170 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+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1050 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:__sanitizer_cov_trace_pc+0x66/0x70 kernel/kcov.c:235 Code: 82 18 16 00 00 83 f8 02 75 20 48 8b 8a 20 16 00 00 8b 92 1c 16 00 00 48 8b 01 48 83 c0 01 48 39 d0 73 07 48 89 01 48 89 34 c1 cc cc cc cc 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc900250374c0 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 0000000000000009 RCX: ffffffff8b7fe4bd RDX: ffff888058ccc880 RSI: ffffffff8b7fe37a RDI: 0000000000000000 RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000009 R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000002 R13: 000000007ffffffe R14: dffffc0000000000 R15: ffffc90025037780 mas_safe_pivot lib/maple_tree.c:716 [inline] mas_anode_descend lib/maple_tree.c:4883 [inline] mas_awalk lib/maple_tree.c:5022 [inline] mas_empty_area+0x47a/0x2950 lib/maple_tree.c:5099 mas_alloc_cyclic+0xd7/0x17b0 lib/maple_tree.c:4367 mtree_alloc_cyclic+0x170/0x1e0 lib/maple_tree.c:6512 simple_offset_add+0xbf/0x180 fs/libfs.c:300 shmem_mknod+0x26b/0x450 mm/shmem.c:3856 lookup_open.isra.0+0x11d0/0x1580 fs/namei.c:3717 open_last_lookups fs/namei.c:3816 [inline] path_openat+0x893/0x2cb0 fs/namei.c:4052 do_filp_open+0x20b/0x470 fs/namei.c:4082 do_sys_openat2+0x11b/0x1d0 fs/open.c:1437 do_sys_open fs/open.c:1452 [inline] __do_sys_openat fs/open.c:1468 [inline] __se_sys_openat fs/open.c:1463 [inline] __x64_sys_openat+0x174/0x210 fs/open.c:1463 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fbff44a7407 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:00007ffcfaa7a950 EFLAGS: 00000202 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fbff4c01880 RCX: 00007fbff44a7407 RDX: 0000000000080241 RSI: 00007ffcfaa7aeb0 RDI: ffffffffffffff9c RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000000001b6 R11: 0000000000000202 R12: 000055b7710a5dfc R13: 000055b7710a5dfc R14: 0000000000000001 R15: 000055b779467580 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 18 16 sbb %dl,(%rsi) 2: 00 00 add %al,(%rax) 4: 83 f8 02 cmp $0x2,%eax 7: 75 20 jne 0x29 9: 48 8b 8a 20 16 00 00 mov 0x1620(%rdx),%rcx 10: 8b 92 1c 16 00 00 mov 0x161c(%rdx),%edx 16: 48 8b 01 mov (%rcx),%rax 19: 48 83 c0 01 add $0x1,%rax 1d: 48 39 d0 cmp %rdx,%rax 20: 73 07 jae 0x29 22: 48 89 01 mov %rax,(%rcx) 25: 48 89 34 c1 mov %rsi,(%rcx,%rax,8) * 29: c3 ret <-- trapping instruction 2a: cc int3 2b: cc int3 2c: cc int3 2d: cc int3 2e: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 33: 90 nop 34: 90 nop 35: 90 nop 36: 90 nop 37: 90 nop 38: 90 nop 39: 90 nop 3a: 90 nop 3b: 90 nop 3c: 90 nop 3d: 90 nop 3e: 90 nop