list_del corruption. prev->next should be ffff88807c539948, but was 0000000000000000. (prev=ffff88807699e068) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:59! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 4441 Comm: udevd Not tainted 6.2.0-rc7-next-20230208-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 RIP: 0010:__list_del_entry_valid+0x11f/0x1b0 lib/list_debug.c:59 Code: f5 a6 8a e8 c3 8a 4a fd 0f 0b 48 89 ca 48 c7 c7 a0 f5 a6 8a e8 b2 8a 4a fd 0f 0b 4c 89 c2 48 c7 c7 00 f6 a6 8a e8 a1 8a 4a fd <0f> 0b 48 89 d1 48 c7 c7 80 f6 a6 8a 4c 89 c2 e8 8d 8a 4a fd 0f 0b RSP: 0018:ffffc9000317fd48 EFLAGS: 00010286 RAX: 000000000000006d RBX: ffff88807c539800 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8168db7c RDI: 0000000000000005 RBP: ffff88807699e000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000000 R12: ffff888146b5b570 R13: 0000000000000000 R14: ffff888016639320 R15: ffff88807c539948 FS: 00007fd2c4d3d840(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020006030 CR3: 0000000028f3a000 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] kernfs_unlink_open_file+0x162/0x4a0 fs/kernfs/file.c:628 kernfs_fop_release+0xeb/0x1e0 fs/kernfs/file.c:805 __fput+0x27c/0xa90 fs/file_table.c:321 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: 0033:0x7fd2c492a467 Code: 44 00 00 48 8b 15 11 aa 0c 00 f7 d8 64 89 02 b8 ff ff ff ff eb bc 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 8b 15 e1 a9 0c 00 f7 d8 64 89 02 b8 RSP: 002b:00007ffd66c653a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 000055aa6a713960 RCX: 00007fd2c492a467 RDX: 00007fd2c49f1780 RSI: 000055aa6a719050 RDI: 000000000000000c RBP: 0000000000000000 R08: 0000000000000000 R09: 00007fd2c49f5a60 R10: 000055aa6a71a050 R11: 0000000000000202 R12: 00007fd2c49f2380 R13: 000055aa6a704d90 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_del_entry_valid+0x11f/0x1b0 lib/list_debug.c:59 Code: f5 a6 8a e8 c3 8a 4a fd 0f 0b 48 89 ca 48 c7 c7 a0 f5 a6 8a e8 b2 8a 4a fd 0f 0b 4c 89 c2 48 c7 c7 00 f6 a6 8a e8 a1 8a 4a fd <0f> 0b 48 89 d1 48 c7 c7 80 f6 a6 8a 4c 89 c2 e8 8d 8a 4a fd 0f 0b RSP: 0018:ffffc9000317fd48 EFLAGS: 00010286 RAX: 000000000000006d RBX: ffff88807c539800 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8168db7c RDI: 0000000000000005 RBP: ffff88807699e000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000000 R12: ffff888146b5b570 R13: 0000000000000000 R14: ffff888016639320 R15: ffff88807c539948 FS: 00007fd2c4d3d840(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3cf5f821b8 CR3: 0000000028f3a000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400