non-paged memory list_del corruption, ffff8880301fe280->next is LIST_POISON1 (dead000000000100) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:58! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 1 UID: 0 PID: 11349 Comm: kworker/u9:4 Not tainted 6.16.0-rc3-syzkaller-00072-gee88bddf7f2f #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Workqueue: hci3 hci_conn_timeout RIP: 0010:__list_del_entry_valid_or_report+0x10e/0x190 lib/list_debug.c:56 Code: 40 bd e1 8b 48 89 de e8 30 fa 66 fc 90 0f 0b 4c 89 e7 e8 65 82 40 fd 48 c7 c7 a0 bd e1 8b 48 89 de 4c 89 e2 e8 13 fa 66 fc 90 <0f> 0b 4c 89 e7 e8 48 82 40 fd 48 c7 c7 00 be e1 8b 48 89 de 4c 89 RSP: 0018:ffffc90003237980 EFLAGS: 00010246 RAX: 000000000000004e RBX: ffff8880301fe280 RCX: 73918a4d01080b00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffffff8a6eb970 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1bfaa04 R12: dead000000000100 R13: dffffc0000000000 R14: dead000000000100 R15: dead000000000122 FS: 0000000000000000(0000) GS:ffff888125d85000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000001000 CR3: 000000007b468000 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+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:2919 process_one_work kernel/workqueue.c:3238 [inline] process_scheduled_works+0xade/0x17b0 kernel/workqueue.c:3321 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402 kthread+0x70e/0x8a0 kernel/kthread.c:464 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148 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: 40 bd e1 8b 48 89 de e8 30 fa 66 fc 90 0f 0b 4c 89 e7 e8 65 82 40 fd 48 c7 c7 a0 bd e1 8b 48 89 de 4c 89 e2 e8 13 fa 66 fc 90 <0f> 0b 4c 89 e7 e8 48 82 40 fd 48 c7 c7 00 be e1 8b 48 89 de 4c 89 RSP: 0018:ffffc90003237980 EFLAGS: 00010246 RAX: 000000000000004e RBX: ffff8880301fe280 RCX: 73918a4d01080b00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffffff8a6eb970 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1bfaa04 R12: dead000000000100 R13: dffffc0000000000 R14: dead000000000100 R15: dead000000000122 FS: 0000000000000000(0000) GS:ffff888125d85000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000001000 CR3: 000000007b468000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400