Oops: general protection fault, probably for non-canonical address 0xdffffc0000000007: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000038-0x000000000000003f]
CPU: 0 UID: 0 PID: 5827 Comm: kworker/u9:2 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
Workqueue: hci5 hci_conn_timeout
RIP: 0010:hci_abort_conn+0x143/0x360 net/bluetooth/hci_conn.c:3099
Code: bc 24 48 0e 00 00 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 ff e8 2b 62 97 f7 4d 8b 3f 49 83 c7 3b 4c 89 f8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 29 01 00 00 45 0f b6 3f 4c 89 ff 48 c7
RSP: 0018:ffffc9000424faf8 EFLAGS: 00010202
RAX: 0000000000000007 RBX: ffff888022f34000 RCX: 0000000000000000
RDX: ffff88807d4c5ac0 RSI: 0000000000000001 RDI: 0000000000000001
RBP: 0000000000000001 R08: ffff88807d4c5ac0 R09: 0000000000000002
R10: 0000000000000080 R11: 0000000000000000 R12: ffff888051adc000
R13: dffffc0000000000 R14: ffff888022f3495c R15: 000000000000003b
FS:  0000000000000000(0000) GS:ffff888125296000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3563be8600 CR3: 0000000044bd6000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 process_one_work+0x949/0x15a0 kernel/workqueue.c:3279
 process_scheduled_works kernel/workqueue.c:3362 [inline]
 worker_thread+0xb46/0x1140 kernel/workqueue.c:3443
 kthread+0x388/0x470 kernel/kthread.c:467
 ret_from_fork+0x51b/0xa40 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:hci_abort_conn+0x143/0x360 net/bluetooth/hci_conn.c:3099
Code: bc 24 48 0e 00 00 4c 89 f8 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 ff e8 2b 62 97 f7 4d 8b 3f 49 83 c7 3b 4c 89 f8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 29 01 00 00 45 0f b6 3f 4c 89 ff 48 c7
RSP: 0018:ffffc9000424faf8 EFLAGS: 00010202
RAX: 0000000000000007 RBX: ffff888022f34000 RCX: 0000000000000000
RDX: ffff88807d4c5ac0 RSI: 0000000000000001 RDI: 0000000000000001
RBP: 0000000000000001 R08: ffff88807d4c5ac0 R09: 0000000000000002
R10: 0000000000000080 R11: 0000000000000000 R12: ffff888051adc000
R13: dffffc0000000000 R14: ffff888022f3495c R15: 000000000000003b
FS:  0000000000000000(0000) GS:ffff888125396000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30b11ff8 CR3: 000000000e54c000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
   0:	bc 24 48 0e 00       	mov    $0xe4824,%esp
   5:	00 4c 89 f8          	add    %cl,-0x8(%rcx,%rcx,4)
   9:	48 c1 e8 03          	shr    $0x3,%rax
   d:	42 80 3c 28 00       	cmpb   $0x0,(%rax,%r13,1)
  12:	74 08                	je     0x1c
  14:	4c 89 ff             	mov    %r15,%rdi
  17:	e8 2b 62 97 f7       	call   0xf7976247
  1c:	4d 8b 3f             	mov    (%r15),%r15
  1f:	49 83 c7 3b          	add    $0x3b,%r15
  23:	4c 89 f8             	mov    %r15,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 0f b6 04 28       	movzbl (%rax,%r13,1),%eax <-- trapping instruction
  2f:	84 c0                	test   %al,%al
  31:	0f 85 29 01 00 00    	jne    0x160
  37:	45 0f b6 3f          	movzbl (%r15),%r15d
  3b:	4c 89 ff             	mov    %r15,%rdi
  3e:	48                   	rex.W
  3f:	c7                   	.byte 0xc7