slab kmalloc-2k start ffff88806b25c000 pointer offset 1400 size 2048
list_del corruption. prev->next should be ffff8880216b6578, but was 0000000000000300. (prev=ffff88806b25c578)
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:64!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 12026 Comm: syz-executor Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
RIP: 0010:__list_del_entry_valid_or_report+0x15a/0x190 lib/list_debug.c:62
Code: e8 8b 80 53 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 bc 79 76 fd 49 8b 17 48 c7 c7 40 da 27 8c 48 89 de 4c 89 f9 e8 d7 23 6e fc 90 <0f> 0b 4c 89 f7 e8 5c 80 53 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 8d
RSP: 0018:ffffc90004cbf900 EFLAGS: 00010246
RAX: 000000000000006d RBX: ffff8880216b6578 RCX: e780643ab68ea000
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffff8880216b3010 R08: ffffc90004cbf687 R09: 1ffff92000997ed0
R10: dffffc0000000000 R11: fffff52000997ed1 R12: 1ffff1100d64b8af
R13: dffffc0000000000 R14: ffff88806b25c578 R15: ffff88806b25c578
FS:  0000000000000000(0000) GS:ffff888125454000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055ad4507a950 CR3: 0000000028a5b000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 __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+0x39/0x260 net/bluetooth/af_bluetooth.c:259
 l2cap_sock_teardown_cb+0x17e/0x490 net/bluetooth/l2cap_sock.c:1640
 l2cap_chan_del+0xb5/0x610 net/bluetooth/l2cap_core.c:656
 l2cap_conn_del+0x33d/0x570 net/bluetooth/l2cap_core.c:1802
 hci_disconn_cfm include/net/bluetooth/hci_core.h:2154 [inline]
 hci_conn_hash_flush+0x10d/0x260 net/bluetooth/hci_conn.c:2650
 hci_dev_close_sync+0x821/0x10e0 net/bluetooth/hci_sync.c:5368
 hci_dev_do_close net/bluetooth/hci_core.c:502 [inline]
 hci_unregister_dev+0x21a/0x5a0 net/bluetooth/hci_core.c:2716
 vhci_release+0x152/0x1a0 drivers/bluetooth/hci_vhci.c:690
 __fput+0x44f/0xa70 fs/file_table.c:469
 task_work_run+0x1d9/0x270 kernel/task_work.c:233
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x70f/0x23c0 kernel/exit.c:976
 do_group_exit+0x21b/0x2d0 kernel/exit.c:1118
 __do_sys_exit_group kernel/exit.c:1129 [inline]
 __se_sys_exit_group kernel/exit.c:1127 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1127
 x64_sys_call+0x221a/0x2240 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f45b4d9c819
Code: Unable to access opcode bytes at 0x7f45b4d9c7ef.
RSP: 002b:00007fff3510aac8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f45b4e3206d RCX: 00007f45b4d9c819
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 0000000000000005 R08: 0000000000000000 R09: 00007f45b4e32048
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff3510bd20
R13: 00007f45b4e32048 R14: 00000000000d26c7 R15: 00007fff3510bd60
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__list_del_entry_valid_or_report+0x15a/0x190 lib/list_debug.c:62
Code: e8 8b 80 53 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 bc 79 76 fd 49 8b 17 48 c7 c7 40 da 27 8c 48 89 de 4c 89 f9 e8 d7 23 6e fc 90 <0f> 0b 4c 89 f7 e8 5c 80 53 fd 43 80 3c 2c 00 74 08 4c 89 ff e8 8d
RSP: 0018:ffffc90004cbf900 EFLAGS: 00010246
RAX: 000000000000006d RBX: ffff8880216b6578 RCX: e780643ab68ea000
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffff8880216b3010 R08: ffffc90004cbf687 R09: 1ffff92000997ed0
R10: dffffc0000000000 R11: fffff52000997ed1 R12: 1ffff1100d64b8af
R13: dffffc0000000000 R14: ffff88806b25c578 R15: ffff88806b25c578
FS:  0000000000000000(0000) GS:ffff888125454000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055ad4507a950 CR3: 0000000029187000 CR4: 0000000000350ef0