------------[ cut here ]------------
workqueue: cannot queue hci_conn_timeout on wq hci0
WARNING: kernel/workqueue.c:2297 at __queue_work+0xcee/0x1270 kernel/workqueue.c:2296, CPU#0: kworker/u8:25/11172
Modules linked in:
CPU: 0 UID: 0 PID: 11172 Comm: kworker/u8:25 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
Workqueue: events_unbound nsim_dev_trap_report_work
RIP: 0010:__queue_work+0xcf2/0x1270 kernel/workqueue.c:2296
Code: 00 00 00 fc ff df 49 8d 94 24 70 01 00 00 48 89 f9 48 c1 e9 03 80 3c 01 00 0f 85 3d 05 00 00 48 8d 3d e2 5e 0b 0f 48 8b 75 18 <67> 48 0f b9 3a 48 b8 00 00 00 00 00 fc ff df 48 89 ea 48 c1 ea 03
RSP: 0018:ffffc90000007bd0 EFLAGS: 00010046
RAX: dffffc0000000000 RBX: 0000000000000100 RCX: 1ffff1100c98f94b
RDX: ffff888035944170 RSI: ffffffff8a812230 RDI: ffffffff90da5980
RBP: ffff888064c7ca40 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000000 R12: ffff888035944000
R13: 1ffff92000000f8d R14: ffffffff81cf0030 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff888124387000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000560d341c5008 CR3: 000000005b132000 CR4: 0000000000350ef0
Call Trace:
 <IRQ>
 call_timer_fn+0x19a/0x640 kernel/time/timer.c:1748
 expire_timers kernel/time/timer.c:1794 [inline]
 __run_timers+0x583/0xaf0 kernel/time/timer.c:2374
 __run_timer_base kernel/time/timer.c:2386 [inline]
 __run_timer_base kernel/time/timer.c:2378 [inline]
 run_timer_base+0x114/0x190 kernel/time/timer.c:2395
 run_timer_softirq+0x1a/0x50 kernel/time/timer.c:2405
 handle_softirqs+0x1ea/0xa00 kernel/softirq.c:622
 __do_softirq kernel/softirq.c:656 [inline]
 invoke_softirq kernel/softirq.c:496 [inline]
 __irq_exit_rcu+0x162/0x210 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+0xa3/0xc0 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:skb_end_pointer include/linux/skbuff.h:1726 [inline]
RIP: 0010:skb_zcopy include/linux/skbuff.h:1794 [inline]
RIP: 0010:skb_release_data+0x1b3/0x8e0 net/core/skbuff.c:1099
Code: 00 00 00 00 fc ff df 48 c1 ea 03 0f b6 14 02 4c 89 e8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 0e 06 00 00 8b 85 cc 00 00 00 <48> 01 c3 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 0f b6
RSP: 0018:ffffc90006c67af8 EFLAGS: 00000246
RAX: 0000000000000ec0 RBX: ffff88803d3f8000 RCX: ffffffff8957987f
RDX: 0000000000000000 RSI: ffffffff89579921 RDI: ffff888028418000
RBP: ffff888078998640 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88803d3f8ec0
R13: ffff88807899870c R14: ffff888078998710 R15: 0000000000000000
 skb_release_all net/core/skbuff.c:1189 [inline]
 __kfree_skb net/core/skbuff.c:1203 [inline]
 consume_skb net/core/skbuff.c:1436 [inline]
 consume_skb+0xc4/0x110 net/core/skbuff.c:1430
 nsim_dev_trap_report drivers/net/netdevsim/dev.c:892 [inline]
 nsim_dev_trap_report_work+0x8de/0xd20 drivers/net/netdevsim/dev.c:922
 process_one_work+0xa0e/0x1980 kernel/workqueue.c:3314
 process_scheduled_works kernel/workqueue.c:3397 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3478
 kthread+0x370/0x450 kernel/kthread.c:436
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
----------------
Code disassembly (best guess):
   0:	00 00                	add    %al,(%rax)
   2:	00 fc                	add    %bh,%ah
   4:	ff                   	lcall  (bad)
   5:	df 49 8d             	fisttps -0x73(%rcx)
   8:	94                   	xchg   %eax,%esp
   9:	24 70                	and    $0x70,%al
   b:	01 00                	add    %eax,(%rax)
   d:	00 48 89             	add    %cl,-0x77(%rax)
  10:	f9                   	stc
  11:	48 c1 e9 03          	shr    $0x3,%rcx
  15:	80 3c 01 00          	cmpb   $0x0,(%rcx,%rax,1)
  19:	0f 85 3d 05 00 00    	jne    0x55c
  1f:	48 8d 3d e2 5e 0b 0f 	lea    0xf0b5ee2(%rip),%rdi        # 0xf0b5f08
  26:	48 8b 75 18          	mov    0x18(%rbp),%rsi
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  36:	fc ff df
  39:	48 89 ea             	mov    %rbp,%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx