non-paged memory
list_del corruption, ffff88802ee0e880->next is LIST_POISON1 (dead000000000100)
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:56!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5841 Comm: kworker/u9:3 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
Workqueue: hci3 hci_conn_timeout
RIP: 0010:__list_del_entry_valid_or_report+0x121/0x200 lib/list_debug.c:56
Code: 48 c7 c7 80 10 d0 8b e8 bd 06 f5 fc 90 0f 0b 4c 89 e7 e8 32 6a 59 fd 4c 89 e2 48 89 de 48 c7 c7 e0 10 d0 8b e8 a0 06 f5 fc 90 <0f> 0b 48 89 ef e8 15 6a 59 fd 48 89 ea 48 89 de 48 c7 c7 40 11 d0
RSP: 0018:ffffc9000403fb78 EFLAGS: 00010282
RAX: 000000000000004e RBX: ffff88802ee0e880 RCX: ffffffff8199cad9
RDX: 0000000000000000 RSI: ffffffff819a4976 RDI: 0000000000000005
RBP: dead000000000122 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000000 R11: 0000000000000000 R12: dead000000000100
R13: dffffc0000000000 R14: ffff88806a388658 R15: ffff88802ee0e880
FS:  0000000000000000(0000) GS:ffff888124e72000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555576645c8 CR3: 000000006ab58000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 __list_del_entry_valid include/linux/list.h:124 [inline]
 __list_del_entry include/linux/list.h:215 [inline]
 list_del include/linux/list.h:229 [inline]
 _hci_cmd_sync_cancel_entry.constprop.0+0x80/0x1d0 net/bluetooth/hci_sync.c:647
 hci_cmd_sync_cancel_entry net/bluetooth/hci_sync.c:851 [inline]
 hci_cmd_sync_dequeue_once net/bluetooth/hci_sync.c:870 [inline]
 hci_cancel_connect_sync+0xfa/0x2b0 net/bluetooth/hci_sync.c:6958
 hci_abort_conn+0x15a/0x340 net/bluetooth/hci_conn.c:2958
 hci_conn_timeout+0x1a2/0x210 net/bluetooth/hci_conn.c:579
 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3263
 process_scheduled_works kernel/workqueue.c:3346 [inline]
 worker_thread+0x6c8/0xf10 kernel/workqueue.c:3427
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x56d/0x730 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__list_del_entry_valid_or_report+0x121/0x200 lib/list_debug.c:56
Code: 48 c7 c7 80 10 d0 8b e8 bd 06 f5 fc 90 0f 0b 4c 89 e7 e8 32 6a 59 fd 4c 89 e2 48 89 de 48 c7 c7 e0 10 d0 8b e8 a0 06 f5 fc 90 <0f> 0b 48 89 ef e8 15 6a 59 fd 48 89 ea 48 89 de 48 c7 c7 40 11 d0
RSP: 0018:ffffc9000403fb78 EFLAGS: 00010282
RAX: 000000000000004e RBX: ffff88802ee0e880 RCX: ffffffff8199cad9
RDX: 0000000000000000 RSI: ffffffff819a4976 RDI: 0000000000000005
RBP: dead000000000122 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000000 R11: 0000000000000000 R12: dead000000000100
R13: dffffc0000000000 R14: ffff88806a388658 R15: ffff88802ee0e880
FS:  0000000000000000(0000) GS:ffff888124e72000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555576645c8 CR3: 00000000757ec000 CR4: 0000000000350ef0