slab kmalloc-2k start ffff0000d9cd5000 pointer offset 1400 size 2048
list_del corruption. prev->next should be ffff0000d3a15578, but was ffff0000e197b578. (prev=ffff0000d9cd5578)
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:64!
Internal error: Oops - BUG: 00000000f2000800 [#1]  SMP
Modules linked in:
CPU: 0 UID: 0 PID: 6845 Comm: syz.3.26 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : __list_del_entry_valid_or_report+0x17c/0x1b4 lib/list_debug.c:62
lr : __list_del_entry_valid_or_report+0x17c/0x1b4 lib/list_debug.c:62
sp : ffff8000a24c7370
x29: ffff8000a24c7370 x28: ffff0000d7fe72c0 x27: dfff800000000000
x26: ffff0000d3a1700c x25: 1fffe0001a742e02 x24: dfff800000000000
x23: 1fffe0001b39aaaf x22: dfff800000000000 x21: ffff0000d9cd5578
x20: ffff0000d9cd5578 x19: ffff0000d3a15578 x18: 1fffe0003377d090
x17: ffff80008f86e000 x16: ffff800082e5e68c x15: 0000000000000001
x14: 1ffff00014498de8 x13: 0000000000000000 x12: 0000000000000000
x11: ffff700014498de9 x10: 0000000000ff0100 x9 : 5288ce8e59fb4800
x8 : 5288ce8e59fb4800 x7 : ffff80008049ea88 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff8000807f1260
x2 : 0000000000000001 x1 : 0000000100000000 x0 : 000000000000006d
Call trace:
 __list_del_entry_valid_or_report+0x17c/0x1b4 lib/list_debug.c:62 (P)
 __list_del_entry_valid include/linux/list.h:132 [inline]
 __list_del_entry include/linux/list.h:223 [inline]
 list_del_init include/linux/list.h:295 [inline]
 bt_accept_unlink+0x40/0x26c net/bluetooth/af_bluetooth.c:259
 l2cap_sock_teardown_cb+0x148/0x388 net/bluetooth/l2cap_sock.c:1616
 l2cap_chan_del+0xb8/0x498 net/bluetooth/l2cap_core.c:656
 l2cap_conn_del+0x2b8/0x53c net/bluetooth/l2cap_core.c:1788
 l2cap_disconn_cfm+0x90/0x104 net/bluetooth/l2cap_core.c:7326
 hci_disconn_cfm include/net/bluetooth/hci_core.h:2146 [inline]
 hci_conn_hash_flush+0x108/0x23c net/bluetooth/hci_conn.c:2637
 hci_dev_close_sync+0x65c/0xfd0 net/bluetooth/hci_sync.c:5326
 hci_dev_do_close net/bluetooth/hci_core.c:501 [inline]
 hci_unregister_dev+0x204/0x52c net/bluetooth/hci_core.c:2715
 vhci_release+0x12c/0x17c drivers/bluetooth/hci_vhci.c:690
 __fput+0x340/0x75c fs/file_table.c:468
 ____fput+0x20/0x58 fs/file_table.c:496
 task_work_run+0x1dc/0x260 kernel/task_work.c:233
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x52c/0x1a1c kernel/exit.c:971
 do_group_exit+0x194/0x22c kernel/exit.c:1112
 get_signal+0x11dc/0x12f8 kernel/signal.c:3034
 arch_do_signal_or_restart+0x268/0x46d4 arch/arm64/kernel/signal.c:1619
 __exit_to_user_mode_loop kernel/entry/common.c:41 [inline]
 exit_to_user_mode_loop+0x88/0x18c kernel/entry/common.c:75
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
 exit_to_user_mode_prepare_legacy include/linux/irq-entry-common.h:242 [inline]
 arm64_exit_to_user_mode arch/arm64/kernel/entry-common.c:81 [inline]
 el0_svc+0x17c/0x26c arch/arm64/kernel/entry-common.c:725
 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:743
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596
Code: 91058000 aa1303e1 aa1503e3 974a97c3 (d4210000) 
---[ end trace 0000000000000000 ]---