list_del corruption. prev->next should be ffff88802a20e000, but was ffff88807d613000. (prev=ffffffff8e5b11a0) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:59! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 26913 Comm: syz-executor.0 Not tainted 6.4.0-rc3-syzkaller-00008-gae8373a5add4 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 RIP: 0010:__list_del_entry_valid+0x11f/0x1b0 lib/list_debug.c:59 Code: 17 a7 8a e8 a3 e6 50 fd 0f 0b 48 89 ca 48 c7 c7 a0 17 a7 8a e8 92 e6 50 fd 0f 0b 4c 89 c2 48 c7 c7 00 18 a7 8a e8 81 e6 50 fd <0f> 0b 48 89 d1 48 c7 c7 80 18 a7 8a 4c 89 c2 e8 6d e6 50 fd 0f 0b RSP: 0018:ffffc90004bc7a48 EFLAGS: 00010286 RAX: 000000000000006d RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8168b8fc RDI: 0000000000000005 RBP: ffff88802a20e000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000001 R12: ffff88802a20e008 R13: ffff88802a20f098 R14: ffff88802a208000 R15: ffff88802a20f5f0 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020088000 CR3: 000000002844d000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __list_del_entry include/linux/list.h:134 [inline] list_del include/linux/list.h:148 [inline] local_release net/nfc/llcp_core.c:172 [inline] kref_put include/linux/kref.h:65 [inline] nfc_llcp_local_put net/nfc/llcp_core.c:182 [inline] nfc_llcp_local_put net/nfc/llcp_core.c:177 [inline] nfc_llcp_unregister_device+0xb8/0x260 net/nfc/llcp_core.c:1620 nfc_unregister_device+0x196/0x330 net/nfc/core.c:1179 virtual_ncidev_close+0x52/0xb0 drivers/nfc/virtual_ncidev.c:163 __fput+0x27c/0xa90 fs/file_table.c:321 task_work_run+0x16f/0x270 kernel/task_work.c:179 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0xad3/0x2960 kernel/exit.c:871 do_group_exit+0xd4/0x2a0 kernel/exit.c:1021 get_signal+0x2315/0x25b0 kernel/signal.c:2874 arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:306 exit_to_user_mode_loop kernel/entry/common.c:168 [inline] exit_to_user_mode_prepare+0x11f/0x240 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:297 do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f7a4028c169 Code: Unable to access opcode bytes at 0x7f7a4028c13f. RSP: 002b:00007f7a40fa6168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: 0000000000000008 RBX: 00007f7a403ac050 RCX: 00007f7a4028c169 RDX: 0000000000000002 RSI: 0000000020000100 RDI: ffffffffffffff9c RBP: 00007f7a402e7ca1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f7a404cfb1f R14: 00007f7a40fa6300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_del_entry_valid+0x11f/0x1b0 lib/list_debug.c:59 Code: 17 a7 8a e8 a3 e6 50 fd 0f 0b 48 89 ca 48 c7 c7 a0 17 a7 8a e8 92 e6 50 fd 0f 0b 4c 89 c2 48 c7 c7 00 18 a7 8a e8 81 e6 50 fd <0f> 0b 48 89 d1 48 c7 c7 80 18 a7 8a 4c 89 c2 e8 6d e6 50 fd 0f 0b RSP: 0018:ffffc90004bc7a48 EFLAGS: 00010286 RAX: 000000000000006d RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8168b8fc RDI: 0000000000000005 RBP: ffff88802a20e000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000001 R12: ffff88802a20e008 R13: ffff88802a20f098 R14: ffff88802a208000 R15: ffff88802a20f5f0 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000000484b4000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400