------------[ cut here ]------------
workqueue: cannot queue hci_cmd_timeout on wq hci6
WARNING: kernel/workqueue.c:2306 at __queue_work+0xd4a/0x10a0 kernel/workqueue.c:2305, CPU#1: modprobe/23919
Modules linked in:
CPU: 1 UID: 0 PID: 23919 Comm: modprobe Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/10/2026
RIP: 0010:__queue_work+0xd66/0x10a0 kernel/workqueue.c:2305
Code: 49 81 c7 70 01 00 00 4c 8d 35 16 ea a8 0e 48 89 f8 48 c1 e8 03 80 3c 18 00 74 05 e8 d4 ac a6 00 49 8b 75 18 4c 89 f7 4c 89 fa <67> 48 0f b9 3a 4c 89 e8 48 c1 e8 03 80 3c 18 00 74 08 4c 89 ef e8
RSP: 0018:ffffc90000a08bc8 EFLAGS: 00010046
RAX: 1ffff1100a22c94e RBX: dffffc0000000000 RCX: ffff88802d359f00
RDX: ffff888076537170 RSI: ffffffff8aa6d440 RDI: ffffffff90362390
RBP: 0000000000000100 R08: ffffffff9032f8f7 R09: 1ffffffff2065f1e
R10: dffffc0000000000 R11: ffffffff818d40a0 R12: 0000000000000008
R13: ffff888051164a58 R14: ffffffff90362390 R15: ffff888076537170
FS:  0000000000000000(0000) GS:ffff888125320000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbd71909e9c CR3: 0000000076fc2000 CR4: 0000000000350ef0
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+0x225/0x840 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:1062 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1062
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:memset+0xf/0x30 arch/x86/lib/memset_64.S:38
Code: 44 88 1f e9 8e 64 5b f5 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 49 89 f9 40 88 f0 48 89 d1 <f3> aa 4c 89 c8 e9 62 64 5b f5 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc9000ec97318 EFLAGS: 00000202
RAX: ffffc9000ec97e00 RBX: ffffc9000ec97418 RCX: 000000000000000f
RDX: 0000000000000010 RSI: 0000000000000000 RDI: ffffc9000ec97419
RBP: 1ffffffff2192140 R08: ffffc9000ec97427 R09: ffffc9000ec97418
R10: dffffc0000000000 R11: fffff52001d92e85 R12: dffffc0000000000
R13: ffffffff90c909fc R14: ffffc9000ec973c8 R15: ffffc9000ec97410
 unwind_next_frame+0xd04/0x2550 arch/x86/kernel/unwind_orc.c:621
 arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25
 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
 poison_kmalloc_redzone mm/kasan/common.c:398 [inline]
 __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:415
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __kmalloc_cache_noprof+0x32d/0x660 mm/slub.c:5515
 _kmalloc_noprof include/linux/slab.h:969 [inline]
 slab_free_hook mm/slub.c:2657 [inline]
 slab_free mm/slub.c:6405 [inline]
 kmem_cache_free+0x156/0x650 mm/slub.c:6532
 anon_vma_free mm/rmap.c:137 [inline]
 __put_anon_vma+0x12b/0x2d0 mm/rmap.c:2917
 put_anon_vma mm/internal.h:215 [inline]
 unlink_anon_vmas+0x589/0x730 mm/rmap.c:536
 free_pgtables+0x836/0xb70 mm/memory.c:414
 exit_mmap+0x4aa/0x9f0 mm/mmap.c:1312
 __mmput+0x118/0x420 kernel/fork.c:1182
 exit_mm+0x221/0x2d0 kernel/exit.c:610
 do_exit+0x6cd/0x2360 kernel/exit.c:992
 do_group_exit+0x22d/0x2f0 kernel/exit.c:1147
 __do_sys_exit_group kernel/exit.c:1158 [inline]
 __se_sys_exit_group kernel/exit.c:1156 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1156
 x64_sys_call+0x221a/0x2240 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbd71a686c5
Code: Unable to access opcode bytes at 0x7fbd71a6869b.
RSP: 002b:00007ffda8c1db08 EFLAGS: 00000206 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007fbd71b69fe8 RCX: 00007fbd71a686c5
RDX: 00000000000000e7 RSI: ffffffffffffff88 RDI: 0000000000000001
RBP: 0000000000000001 R08: 00007ffda8c1da98 R09: 0000000000000000
R10: 00007ffda8c1d930 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000001 R14: 00007fbd71b68680 R15: 00007fbd71b6a000
 </TASK>
----------------
Code disassembly (best guess):
   0:	49 81 c7 70 01 00 00 	add    $0x170,%r15
   7:	4c 8d 35 16 ea a8 0e 	lea    0xea8ea16(%rip),%r14        # 0xea8ea24
   e:	48 89 f8             	mov    %rdi,%rax
  11:	48 c1 e8 03          	shr    $0x3,%rax
  15:	80 3c 18 00          	cmpb   $0x0,(%rax,%rbx,1)
  19:	74 05                	je     0x20
  1b:	e8 d4 ac a6 00       	call   0xa6acf4
  20:	49 8b 75 18          	mov    0x18(%r13),%rsi
  24:	4c 89 f7             	mov    %r14,%rdi
  27:	4c 89 fa             	mov    %r15,%rdx
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	4c 89 e8             	mov    %r13,%rax
  32:	48 c1 e8 03          	shr    $0x3,%rax
  36:	80 3c 18 00          	cmpb   $0x0,(%rax,%rbx,1)
  3a:	74 08                	je     0x44
  3c:	4c 89 ef             	mov    %r13,%rdi
  3f:	e8                   	.byte 0xe8