non-paged memory list_del corruption, ffff888032243b00->next is LIST_POISON1 (dead000000000100) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:58! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5835 Comm: kworker/u9:3 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 Workqueue: hci1 hci_conn_timeout RIP: 0010:__list_del_entry_valid_or_report+0x10e/0x190 lib/list_debug.c:56 Code: e0 07 bf 8b 48 89 de e8 70 d7 94 fc 90 0f 0b 4c 89 e7 e8 f5 36 71 fd 48 c7 c7 40 08 bf 8b 48 89 de 4c 89 e2 e8 53 d7 94 fc 90 <0f> 0b 4c 89 e7 e8 d8 36 71 fd 48 c7 c7 a0 08 bf 8b 48 89 de 4c 89 RSP: 0018:ffffc9000215f960 EFLAGS: 00010246 RAX: 000000000000004e RBX: ffff888032243b00 RCX: 2f59401246007a00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffffff8a53a6b0 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1bba650 R12: dead000000000100 R13: dffffc0000000000 R14: dead000000000100 R15: dead000000000122 FS: 0000000000000000(0000) GS:ffff88812613e000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000004100 CR3: 000000005ee80000 CR4: 0000000000350ef0 Call Trace: __list_del_entry_valid include/linux/list.h:132 [inline] __list_del_entry include/linux/list.h:223 [inline] list_del include/linux/list.h:237 [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+0x24a/0x370 net/bluetooth/hci_sync.c:870 hci_cancel_connect_sync+0xc8/0x120 net/bluetooth/hci_sync.c:-1 hci_abort_conn+0x191/0x330 net/bluetooth/hci_conn.c:2961 process_one_work kernel/workqueue.c:3263 [inline] process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3346 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3427 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x4bc/0x870 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_del_entry_valid_or_report+0x10e/0x190 lib/list_debug.c:56 Code: e0 07 bf 8b 48 89 de e8 70 d7 94 fc 90 0f 0b 4c 89 e7 e8 f5 36 71 fd 48 c7 c7 40 08 bf 8b 48 89 de 4c 89 e2 e8 53 d7 94 fc 90 <0f> 0b 4c 89 e7 e8 d8 36 71 fd 48 c7 c7 a0 08 bf 8b 48 89 de 4c 89 RSP: 0018:ffffc9000215f960 EFLAGS: 00010246 RAX: 000000000000004e RBX: ffff888032243b00 RCX: 2f59401246007a00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffffff8a53a6b0 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1bba650 R12: dead000000000100 R13: dffffc0000000000 R14: dead000000000100 R15: dead000000000122 FS: 0000000000000000(0000) GS:ffff88812613e000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000004100 CR3: 000000000dd38000 CR4: 0000000000350ef0