non-paged memory list_del corruption, ffff888046350d80->next is LIST_POISON1 (dead000000000100) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:56! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 20706 Comm: kworker/u9:5 Not tainted 6.16.0-rc7-syzkaller-00140-gec2df4364666 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 Workqueue: hci0 hci_conn_timeout RIP: 0010:__list_del_entry_valid_or_report+0x121/0x200 lib/list_debug.c:56 Code: 48 c7 c7 20 78 15 8c e8 4d 9b ba fc 90 0f 0b 4c 89 e7 e8 72 86 1d fd 4c 89 e2 48 89 de 48 c7 c7 80 78 15 8c e8 30 9b ba fc 90 <0f> 0b 48 89 ef e8 55 86 1d fd 48 89 ea 48 89 de 48 c7 c7 e0 78 15 RSP: 0018:ffffc900044afb78 EFLAGS: 00010282 RAX: 000000000000004e RBX: ffff888046350d80 RCX: ffffffff819b0d89 RDX: 0000000000000000 RSI: ffffffff819b8c16 RDI: 0000000000000005 RBP: dead000000000122 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000144260 R12: dead000000000100 R13: dffffc0000000000 R14: ffff8880739f4658 R15: ffff888046350d80 FS: 0000000000000000(0000) GS:ffff888124720000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c44bdc7 CR3: 000000005d2c2000 CR4: 00000000003526f0 DR0: 0000000000000007 DR1: 7fffffffffffffff DR2: 0000000000000fb3 DR3: 0000000000000101 DR6: 00000000ffff0ff0 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.constprop.0+0x80/0x1d0 net/bluetooth/hci_sync.c:647 hci_cmd_sync_cancel_entry net/bluetooth/hci_sync.c:851 [inline] hci_cmd_sync_dequeue_once net/bluetooth/hci_sync.c:870 [inline] hci_cancel_connect_sync+0xfa/0x2b0 net/bluetooth/hci_sync.c:6951 hci_abort_conn+0x15a/0x340 net/bluetooth/hci_conn.c:2919 hci_conn_timeout+0x1a2/0x210 net/bluetooth/hci_conn.c:580 process_one_work+0x9cc/0x1b70 kernel/workqueue.c:3238 process_scheduled_works kernel/workqueue.c:3321 [inline] worker_thread+0x6c8/0xf10 kernel/workqueue.c:3402 kthread+0x3c2/0x780 kernel/kthread.c:464 ret_from_fork+0x5d4/0x6f0 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+0x121/0x200 lib/list_debug.c:56 Code: 48 c7 c7 20 78 15 8c e8 4d 9b ba fc 90 0f 0b 4c 89 e7 e8 72 86 1d fd 4c 89 e2 48 89 de 48 c7 c7 80 78 15 8c e8 30 9b ba fc 90 <0f> 0b 48 89 ef e8 55 86 1d fd 48 89 ea 48 89 de 48 c7 c7 e0 78 15 RSP: 0018:ffffc900044afb78 EFLAGS: 00010282 RAX: 000000000000004e RBX: ffff888046350d80 RCX: ffffffff819b0d89 RDX: 0000000000000000 RSI: ffffffff819b8c16 RDI: 0000000000000005 RBP: dead000000000122 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000144260 R12: dead000000000100 R13: dffffc0000000000 R14: ffff8880739f4658 R15: ffff888046350d80 FS: 0000000000000000(0000) GS:ffff888124720000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c37049b CR3: 0000000068d7b000 CR4: 00000000003526f0 DR0: 0000000000000007 DR1: 7fffffffffffffff DR2: 0000000000000fb3 DR3: 0000000000000101 DR6: 00000000ffff0ff0 DR7: 0000000000000400