general protection fault, probably for non-canonical address 0xdffffc000000000b: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000058-0x000000000000005f]
CPU: 1 PID: 5778 Comm: kworker/u5:7 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Workqueue: hci1 hci_cmd_sync_work
RIP: 0010:klist_put lib/klist.c:212 [inline]
RIP: 0010:klist_del lib/klist.c:230 [inline]
RIP: 0010:klist_remove+0x15c/0x390 lib/klist.c:249
Code: 80 3c 04 00 74 08 4c 89 f7 e8 b0 a4 89 f7 4d 8b 3e 49 83 e7 fe 49 8d 7f 58 48 89 f8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 05 e8 89 a4 89 f7 49 8b 47 58 48 89 44 24 10 4c 89
RSP: 0018:ffffc900049af800 EFLAGS: 00010202
RAX: 000000000000000b RBX: ffff88807af23c00 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000058
RBP: ffffc900049af8e8 R08: ffffffff8e31c143 R09: 1ffffffff1c63828
R10: dffffc0000000000 R11: fffffbfff1c63829 R12: 1ffff11004c8748c
R13: dffffc0000000000 R14: ffff88802643a460 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f29ef9156c0 CR3: 0000000063e8f000 CR4: 00000000003526e0
Call Trace:
<TASK>
device_move+0x193/0x6f0 drivers/base/core.c:4654
hci_conn_del_sysfs+0xaf/0x160 net/bluetooth/hci_sysfs.c:75
hci_conn_cleanup net/bluetooth/hci_conn.c:175 [inline]
hci_conn_del+0x8d8/0xc80 net/bluetooth/hci_conn.c:1149
hci_abort_conn_sync+0x5a8/0xdc0 net/bluetooth/hci_sync.c:5677
hci_cmd_sync_work+0x20c/0x390 net/bluetooth/hci_sync.c:327
process_one_work kernel/workqueue.c:2634 [inline]
process_scheduled_works+0xa45/0x15b0 kernel/workqueue.c:2711
worker_thread+0xa55/0xfc0 kernel/workqueue.c:2792
kthread+0x2fa/0x390 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:klist_put lib/klist.c:212 [inline]
RIP: 0010:klist_del lib/klist.c:230 [inline]
RIP: 0010:klist_remove+0x15c/0x390 lib/klist.c:249
Code: 80 3c 04 00 74 08 4c 89 f7 e8 b0 a4 89 f7 4d 8b 3e 49 83 e7 fe 49 8d 7f 58 48 89 f8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 05 e8 89 a4 89 f7 49 8b 47 58 48 89 44 24 10 4c 89
RSP: 0018:ffffc900049af800 EFLAGS: 00010202
RAX: 000000000000000b RBX: ffff88807af23c00 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000058
RBP: ffffc900049af8e8 R08: ffffffff8e31c143 R09: 1ffffffff1c63828
R10: dffffc0000000000 R11: fffffbfff1c63829 R12: 1ffff11004c8748c
R13: dffffc0000000000 R14: ffff88802643a460 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000564a6baaebe0 CR3: 0000000023c1f000 CR4: 00000000003526e0
----------------
Code disassembly (best guess):
0: 80 3c 04 00 cmpb $0x0,(%rsp,%rax,1)
4: 74 08 je 0xe
6: 4c 89 f7 mov %r14,%rdi
9: e8 b0 a4 89 f7 call 0xf789a4be
e: 4d 8b 3e mov (%r14),%r15
11: 49 83 e7 fe and $0xfffffffffffffffe,%r15
15: 49 8d 7f 58 lea 0x58(%r15),%rdi
19: 48 89 f8 mov %rdi,%rax
1c: 48 c1 e8 03 shr $0x3,%rax
20: 48 b9 00 00 00 00 00 movabs $0xdffffc0000000000,%rcx
27: fc ff df
* 2a: 80 3c 08 00 cmpb $0x0,(%rax,%rcx,1) <-- trapping instruction
2e: 74 05 je 0x35
30: e8 89 a4 89 f7 call 0xf789a4be
35: 49 8b 47 58 mov 0x58(%r15),%rax
39: 48 89 44 24 10 mov %rax,0x10(%rsp)
3e: 4c rex.WR
3f: 89 .byte 0x89