general protection fault, probably for non-canonical address 0xdffffc000000005a: 0000 [#1] PREEMPT SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x00000000000002d0-0x00000000000002d7]
CPU: 1 PID: 16768 Comm: kworker/1:1 Not tainted 5.17.0-rc2-next-20220204 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
Workqueue: events l2cap_chan_timeout
RIP: 0010:__mutex_lock+0xeb/0x1480
Code: d0 7c 08 84 d2 0f 85 bf 10 00 00 8b 0d 9e e6 d0 02 85 c9 75 29 48 b8 00 00 00 00 00 fc ff df 49 8d 7e 60 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 c0 10 00 00 4d 3b 76 60 0f 85 de 09 00 00 bf 01
RSP: 0018:ffff8880446a7b98 EFLAGS: 00010216
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 000000000000005a RSI: 0000000000000000 RDI: 00000000000002d0
RBP: 0000000000000000 R08: ffffffff83a3f851 R09: 0000000000000000
R10: ffffffff811b9936 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff88803faf5000 R14: 0000000000000270 R15: ffff88800cd71100
FS:  0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc233d6080 CR3: 0000000017b64000 CR4: 0000000000350ee0
Call Trace:
 <TASK>
 l2cap_chan_timeout+0x51/0x3a0
 process_one_work+0xa1c/0x16a0
 worker_thread+0x637/0x1260
 kthread+0x2f0/0x3a0
 ret_from_fork+0x22/0x30
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__mutex_lock+0xeb/0x1480
Code: d0 7c 08 84 d2 0f 85 bf 10 00 00 8b 0d 9e e6 d0 02 85 c9 75 29 48 b8 00 00 00 00 00 fc ff df 49 8d 7e 60 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 c0 10 00 00 4d 3b 76 60 0f 85 de 09 00 00 bf 01
RSP: 0018:ffff8880446a7b98 EFLAGS: 00010216
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 000000000000005a RSI: 0000000000000000 RDI: 00000000000002d0
RBP: 0000000000000000 R08: ffffffff83a3f851 R09: 0000000000000000
R10: ffffffff811b9936 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff88803faf5000 R14: 0000000000000270 R15: ffff88800cd71100
FS:  0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc233d6080 CR3: 0000000017b64000 CR4: 0000000000350ee0
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pid=22781 comm=syz-executor.2
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pid=22906 comm=syz-executor.2
----------------
Code disassembly (best guess):
   0:	d0 7c 08 84          	sarb   -0x7c(%rax,%rcx,1)
   4:	d2 0f                	rorb   %cl,(%rdi)
   6:	85 bf 10 00 00 8b    	test   %edi,-0x74fffff0(%rdi)
   c:	0d 9e e6 d0 02       	or     $0x2d0e69e,%eax
  11:	85 c9                	test   %ecx,%ecx
  13:	75 29                	jne    0x3e
  15:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  1c:	fc ff df
  1f:	49 8d 7e 60          	lea    0x60(%r14),%rdi
  23:	48 89 fa             	mov    %rdi,%rdx
  26:	48 c1 ea 03          	shr    $0x3,%rdx
* 2a:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1) <-- trapping instruction
  2e:	0f 85 c0 10 00 00    	jne    0x10f4
  34:	4d 3b 76 60          	cmp    0x60(%r14),%r14
  38:	0f 85 de 09 00 00    	jne    0xa1c
  3e:	bf                   	.byte 0xbf
  3f:	01                   	.byte 0x1