list_del corruption, ffff88802fd99180->next is LIST_POISON1 (dead000000000100) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:58! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 1 UID: 0 PID: 11674 Comm: kworker/u9:2 Not tainted 6.13.0-rc3-next-20241220-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: hci1 hci_conn_timeout RIP: 0010:__list_del_entry_valid_or_report+0xf4/0x140 lib/list_debug.c:56 Code: e8 51 e8 3a fc 90 0f 0b 48 c7 c7 80 f0 5f 8c 4c 89 fe e8 3f e8 3a fc 90 0f 0b 48 c7 c7 e0 f0 5f 8c 4c 89 fe e8 2d e8 3a fc 90 <0f> 0b 48 c7 c7 40 f1 5f 8c 4c 89 fe e8 1b e8 3a fc 90 0f 0b 48 c7 RSP: 0018:ffffc9000f99fa30 EFLAGS: 00010246 RAX: 000000000000004e RBX: dead000000000122 RCX: 0b95e7d5e29ef600 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffff88802fd991a0 R08: ffffffff819ee65c R09: 1ffff92001f33ee0 R10: dffffc0000000000 R11: fffff52001f33ee1 R12: dffffc0000000000 R13: ffff88802fd99180 R14: dead000000000100 R15: ffff88802fd99180 FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002002f000 CR3: 000000003083e000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __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 net/bluetooth/hci_sync.c:647 [inline] hci_cmd_sync_cancel_entry net/bluetooth/hci_sync.c:851 [inline] hci_cmd_sync_dequeue_once+0x262/0x360 net/bluetooth/hci_sync.c:870 hci_cancel_connect_sync+0xc3/0x120 hci_abort_conn+0x194/0x330 net/bluetooth/hci_conn.c:3057 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x7a9/0x920 kernel/kthread.c:464 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_del_entry_valid_or_report+0xf4/0x140 lib/list_debug.c:56 Code: e8 51 e8 3a fc 90 0f 0b 48 c7 c7 80 f0 5f 8c 4c 89 fe e8 3f e8 3a fc 90 0f 0b 48 c7 c7 e0 f0 5f 8c 4c 89 fe e8 2d e8 3a fc 90 <0f> 0b 48 c7 c7 40 f1 5f 8c 4c 89 fe e8 1b e8 3a fc 90 0f 0b 48 c7 RSP: 0018:ffffc9000f99fa30 EFLAGS: 00010246 RAX: 000000000000004e RBX: dead000000000122 RCX: 0b95e7d5e29ef600 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffff88802fd991a0 R08: ffffffff819ee65c R09: 1ffff92001f33ee0 R10: dffffc0000000000 R11: fffff52001f33ee1 R12: dffffc0000000000 R13: ffff88802fd99180 R14: dead000000000100 R15: ffff88802fd99180 FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b3090bff8 CR3: 000000002a55e000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400