------------[ cut here ]------------
workqueue: cannot queue hci_cmd_timeout on wq hci0
WARNING: kernel/workqueue.c:2298 at __queue_work+0xd3f/0x1040 kernel/workqueue.c:2296, CPU#1: cmp/26291
Modules linked in:
CPU: 1 UID: 0 PID: 26291 Comm: cmp Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:__queue_work+0xd67/0x1040 kernel/workqueue.c:2296
Code: a6 0e 49 8d 7d 18 48 89 f8 48 c1 e8 03 42 80 3c 20 00 74 05 e8 4a c0 a3 00 49 8b 75 18 49 81 c7 70 01 00 00 4c 89 f7 4c 89 fa <67> 48 0f b9 3a 4c 89 e8 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 ef
RSP: 0018:ffffc90000a08bd8 EFLAGS: 00010082
RAX: 1ffff1100e54b94e RBX: 0000000000000008 RCX: ffff888060353d80
RDX: ffff88807b4e2970 RSI: ffffffff8a9ca190 RDI: ffffffff90341c90
RBP: 0000000000000100 R08: ffffffff90311df7 R09: 1ffffffff20623be
R10: dffffc0000000000 R11: ffffffff818d48b0 R12: dffffc0000000000
R13: ffff888072a5ca58 R14: ffffffff90341c90 R15: ffff88807b4e2970
FS:  00007fb68a0dac80(0000) GS:ffff88812537a000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb68a442000 CR3: 00000000a8ed0000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 call_timer_fn+0x192/0x5e0 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1794 [inline]
 __run_timers kernel/time/timer.c:2374 [inline]
 __run_timer_base+0x67e/0x8b0 kernel/time/timer.c:2386
 run_timer_base kernel/time/timer.c:2395 [inline]
 run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2405
 handle_softirqs+0x22a/0x840 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0xca/0x220 kernel/softirq.c:735
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:752
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1061
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:unwind_get_return_address+0x0/0x90 arch/x86/kernel/unwind_orc.c:381
Code: f7 49 89 f7 e8 d1 11 ba 00 4c 89 f7 4c 89 fe e9 29 ff ff ff e8 a1 73 33 0a 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 41 57 41 56 53 48 89 fb 49 be 00 00 00 00 00 fc ff df
RSP: 0018:ffffc9000509f180 EFLAGS: 00000202
RAX: 0000000090ca5701 RBX: ffffc9000509f240 RCX: 0000000000000046
RDX: 0000000000000001 RSI: ffffffff8e2250b9 RDI: ffffc9000509f188
RBP: ffffc9000509f210 R08: ffffc9000509f2b0 R09: 0000000000000000
R10: ffffc9000509f1d8 R11: fffff52000a13e3d R12: ffff888060353d80
R13: ffff888041f6ae00 R14: ffffffff81b0efc0 R15: ffffc9000509f188
 arch_stack_walk+0xfb/0x150 arch/x86/kernel/stacktrace.c:26
 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:57 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
 unpoison_slab_object mm/kasan/common.c:340 [inline]
 __kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:366
 kasan_slab_alloc include/linux/kasan.h:253 [inline]
 slab_post_alloc_hook mm/slub.c:4569 [inline]
 slab_alloc_node mm/slub.c:4898 [inline]
 kmem_cache_alloc_noprof+0x2bc/0x650 mm/slub.c:4905
 mt_alloc_one lib/maple_tree.c:139 [inline]
 mas_alloc_nodes+0x291/0x350 lib/maple_tree.c:1089
 mas_preallocate+0x2d6/0x640 lib/maple_tree.c:4961
 vma_iter_prealloc mm/vma.h:577 [inline]
 __split_vma+0x318/0xa40 mm/vma.c:529
 split_vma mm/vma.c:599 [inline]
 vma_modify+0x97e/0x1e10 mm/vma.c:1699
 vma_modify_flags+0x24b/0x330 mm/vma.c:1719
 mprotect_fixup+0x62a/0xb60 mm/mprotect.c:789
 do_mprotect_pkey+0x8d5/0xd20 mm/mprotect.c:967
 __do_sys_mprotect mm/mprotect.c:988 [inline]
 __se_sys_mprotect mm/mprotect.c:985 [inline]
 __x64_sys_mprotect+0x80/0x90 mm/mprotect.c:985
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb68a4712c7
Code: 89 3d fd 3f 01 00 eb 90 0f 1f 00 f7 d8 89 05 f0 3f 01 00 48 c7 c0 ff ff ff ff eb 91 0f 1f 80 00 00 00 00 b8 0a 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8d 0d c9 3f 01 00 f7 d8 89 01 48 83
RSP: 002b:00007ffcc28c7888 EFLAGS: 00000206 ORIG_RAX: 000000000000000a
RAX: ffffffffffffffda RBX: 00007fb68a4450c0 RCX: 00007fb68a4712c7
RDX: 0000000000000001 RSI: 0000000000003000 RDI: 00007fb68a441000
RBP: 00007ffcc28c7b50 R08: 0000000000000000 R09: 00007fb68a3c2bf7
R10: 00007fb68a4450c0 R11: 0000000000000206 R12: 0000000000000008
R13: 000001b4ee8372a3 R14: 0000000000000000 R15: 00007fb68a485310
 </TASK>
----------------
Code disassembly (best guess), 2 bytes skipped:
   0:	49 8d 7d 18          	lea    0x18(%r13),%rdi
   4:	48 89 f8             	mov    %rdi,%rax
   7:	48 c1 e8 03          	shr    $0x3,%rax
   b:	42 80 3c 20 00       	cmpb   $0x0,(%rax,%r12,1)
  10:	74 05                	je     0x17
  12:	e8 4a c0 a3 00       	call   0xa3c061
  17:	49 8b 75 18          	mov    0x18(%r13),%rsi
  1b:	49 81 c7 70 01 00 00 	add    $0x170,%r15
  22:	4c 89 f7             	mov    %r14,%rdi
  25:	4c 89 fa             	mov    %r15,%rdx
* 28:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2d:	4c 89 e8             	mov    %r13,%rax
  30:	48 c1 e8 03          	shr    $0x3,%rax
  34:	42 80 3c 20 00       	cmpb   $0x0,(%rax,%r12,1)
  39:	74 08                	je     0x43
  3b:	4c 89 ef             	mov    %r13,%rdi