general protection fault, probably for non-canonical address 0xdffffc0000000026: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000130-0x0000000000000137]
CPU: 0 PID: 3607 Comm: kworker/0:5 Not tainted 6.1.86-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: events l2cap_info_timeout
RIP: 0010:__lock_acquire+0x69/0x1f80 kernel/locking/lockdep.c:4919
Code: df 0f b6 04 10 84 c0 0f 85 fb 15 00 00 83 3d 61 41 09 0d 00 0f 84 a8 14 00 00 83 3d b0 22 95 0b 00 74 2b 4c 89 f0 48 c1 e8 03 <80> 3c 10 00 74 12 4c 89 f7 e8 69 9a 77 00 48 ba 00 00 00 00 00 fc
RSP: 0018:ffffc90004c4f800 EFLAGS: 00010002
RAX: 0000000000000026 RBX: 0000000000000000 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000130
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff88807b878000 R14: 0000000000000130 R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31e21000 CR3: 00000000575db000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
lock_sock_nested+0x44/0x100 net/core/sock.c:3484
lock_sock include/net/sock.h:1745 [inline]
l2cap_sock_ready_cb+0x43/0x130 net/bluetooth/l2cap_sock.c:1649
l2cap_chan_ready net/bluetooth/l2cap_core.c:1382 [inline]
l2cap_conn_start+0x8c9/0x10a0 net/bluetooth/l2cap_core.c:1640
process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__lock_acquire+0x69/0x1f80 kernel/locking/lockdep.c:4919
Code: df 0f b6 04 10 84 c0 0f 85 fb 15 00 00 83 3d 61 41 09 0d 00 0f 84 a8 14 00 00 83 3d b0 22 95 0b 00 74 2b 4c 89 f0 48 c1 e8 03 <80> 3c 10 00 74 12 4c 89 f7 e8 69 9a 77 00 48 ba 00 00 00 00 00 fc
RSP: 0018:ffffc90004c4f800 EFLAGS: 00010002
RAX: 0000000000000026 RBX: 0000000000000000 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000130
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff88807b878000 R14: 0000000000000130 R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31e21000 CR3: 00000000575db000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: df 0f fisttps (%rdi)
2: b6 04 mov $0x4,%dh
4: 10 84 c0 0f 85 fb 15 adc %al,0x15fb850f(%rax,%rax,8)
b: 00 00 add %al,(%rax)
d: 83 3d 61 41 09 0d 00 cmpl $0x0,0xd094161(%rip) # 0xd094175
14: 0f 84 a8 14 00 00 je 0x14c2
1a: 83 3d b0 22 95 0b 00 cmpl $0x0,0xb9522b0(%rip) # 0xb9522d1
21: 74 2b je 0x4e
23: 4c 89 f0 mov %r14,%rax
26: 48 c1 e8 03 shr $0x3,%rax
* 2a: 80 3c 10 00 cmpb $0x0,(%rax,%rdx,1) <-- trapping instruction
2e: 74 12 je 0x42
30: 4c 89 f7 mov %r14,%rdi
33: e8 69 9a 77 00 call 0x779aa1
38: 48 rex.W
39: ba 00 00 00 00 mov $0x0,%edx
3e: 00 fc add %bh,%ah