list_del corruption. next->prev should be ffff888079406000, but was dead000000000122. (next=ffff888022d90000) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:62! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 16574 Comm: syz-executor.4 Not tainted 6.4.0-rc7-next-20230623-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 RIP: 0010:__list_del_entry_valid+0x133/0x1b0 lib/list_debug.c:62 Code: e8 e2 b6 4d fd 0f 0b 4c 89 c2 48 c7 c7 c0 a0 c7 8a e8 d1 b6 4d fd 0f 0b 48 89 d1 48 c7 c7 40 a1 c7 8a 4c 89 c2 e8 bd b6 4d fd <0f> 0b 48 89 34 24 e8 72 2a bd fd 48 8b 34 24 e9 e3 fe ff ff 48 89 RSP: 0018:ffffc9001497fd50 EFLAGS: 00010286 RAX: 000000000000006d RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff81694c0c RDI: 0000000000000005 RBP: ffff888079406000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000001 R12: ffff888079406008 R13: ffff88802146c098 R14: ffff888077243000 R15: ffff88802146c5f0 FS: 00005555564d5400(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f575aad56be CR3: 0000000023b5b000 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+0x40c/0xad0 fs/file_table.c:378 task_work_run+0x16f/0x270 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop kernel/entry/common.c:171 [inline] exit_to_user_mode_prepare+0x210/0x240 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: 0033:0x7f0445c3e12b Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44 RSP: 002b:00007ffcf2388580 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000007 RCX: 00007f0445c3e12b RDX: 00007f04458017d8 RSI: ffffffffffffffff RDI: 0000000000000006 RBP: 00007f0445dad980 R08: 0000000000000000 R09: 00007f0445800000 R10: 00007f04458017e0 R11: 0000000000000293 R12: 000000000003374b R13: 00007ffcf2388680 R14: 00007f0445dabf80 R15: 0000000000000032 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_del_entry_valid+0x133/0x1b0 lib/list_debug.c:62 Code: e8 e2 b6 4d fd 0f 0b 4c 89 c2 48 c7 c7 c0 a0 c7 8a e8 d1 b6 4d fd 0f 0b 48 89 d1 48 c7 c7 40 a1 c7 8a 4c 89 c2 e8 bd b6 4d fd <0f> 0b 48 89 34 24 e8 72 2a bd fd 48 8b 34 24 e9 e3 fe ff ff 48 89 RSP: 0018:ffffc9001497fd50 EFLAGS: 00010286 RAX: 000000000000006d RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff81694c0c RDI: 0000000000000005 RBP: ffff888079406000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000001 R12: ffff888079406008 R13: ffff88802146c098 R14: ffff888077243000 R15: ffff88802146c5f0 FS: 00005555564d5400(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8309586058 CR3: 0000000023b5b000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400