general protection fault, probably for non-canonical address 0xdffffc0000000066: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000330-0x0000000000000337]
CPU: 0 PID: 5470 Comm: kworker/0:8 Not tainted 6.4.0-rc7-syzkaller-gdad9774deaf1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
Workqueue: events l2cap_chan_timeout
RIP: 0010:__mutex_lock_common+0x110/0x2530 kernel/locking/mutex.c:582
Code: 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 19 1d 00 00 83 3d b2 70 f9 06 00 75 2b 48 8b 44 24 08 48 8d 78 60 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 74 05 e8 c4 96 2a f7 48 8b 44 24 08 48 39 40 60 0f
RSP: 0018:ffffc900057efaa0 EFLAGS: 00010206
RAX: 0000000000000066 RBX: 0000000000000000 RCX: ffffffff91b23103
RDX: dffffc0000000000 RSI: ffff888016f45940 RDI: 0000000000000330
RBP: ffffc900057efc08 R08: dffffc0000000000 R09: 0000000000000000
R10: ffffc900057efb60 R11: dffffc0000000001 R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31920000 CR3: 0000000022833000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __mutex_lock kernel/locking/mutex.c:747 [inline]
 mutex_lock_nested+0x1b/0x20 kernel/locking/mutex.c:799
 l2cap_chan_timeout+0x5a/0x340 net/bluetooth/l2cap_core.c:438
 process_one_work+0x8a0/0x10e0 kernel/workqueue.c:2405
 worker_thread+0xa63/0x1210 kernel/workqueue.c:2552
 kthread+0x2b8/0x350 kernel/kthread.c:379
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__mutex_lock_common+0x110/0x2530 kernel/locking/mutex.c:582
Code: 48 c1 e8 03 42 0f b6 04 28 84 c0 0f 85 19 1d 00 00 83 3d b2 70 f9 06 00 75 2b 48 8b 44 24 08 48 8d 78 60 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 74 05 e8 c4 96 2a f7 48 8b 44 24 08 48 39 40 60 0f
RSP: 0018:ffffc900057efaa0 EFLAGS: 00010206
RAX: 0000000000000066 RBX: 0000000000000000 RCX: ffffffff91b23103
RDX: dffffc0000000000 RSI: ffff888016f45940 RDI: 0000000000000330
RBP: ffffc900057efc08 R08: dffffc0000000000 R09: 0000000000000000
R10: ffffc900057efb60 R11: dffffc0000000001 R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000140 CR3: 000000006b1be000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	48 c1 e8 03          	shr    $0x3,%rax
   4:	42 0f b6 04 28       	movzbl (%rax,%r13,1),%eax
   9:	84 c0                	test   %al,%al
   b:	0f 85 19 1d 00 00    	jne    0x1d2a
  11:	83 3d b2 70 f9 06 00 	cmpl   $0x0,0x6f970b2(%rip)        # 0x6f970ca
  18:	75 2b                	jne    0x45
  1a:	48 8b 44 24 08       	mov    0x8(%rsp),%rax
  1f:	48 8d 78 60          	lea    0x60(%rax),%rdi
  23:	48 89 f8             	mov    %rdi,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 80 3c 28 00       	cmpb   $0x0,(%rax,%r13,1) <-- trapping instruction
  2f:	74 05                	je     0x36
  31:	e8 c4 96 2a f7       	callq  0xf72a96fa
  36:	48 8b 44 24 08       	mov    0x8(%rsp),%rax
  3b:	48 39 40 60          	cmp    %rax,0x60(%rax)
  3f:	0f                   	.byte 0xf