list_del corruption. prev->next should be ffff88810d164800, but was ffff888120643920
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:61!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 18197 Comm: syz.2.5924 Tainted: G        W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:__list_del_entry_valid+0x10c/0x120 lib/list_debug.c:59
Code: 48 89 de e8 26 87 56 02 0f 0b 48 c7 c7 80 99 63 85 48 89 de e8 15 87 56 02 0f 0b 48 c7 c7 e0 99 63 85 48 89 de e8 04 87 56 02 <0f> 0b 48 c7 c7 40 9a 63 85 48 89 de e8 f3 86 56 02 0f 0b 00 55 48
RSP: 0018:ffffc90000b67cd0 EFLAGS: 00010246
RAX: 0000000000000054 RBX: ffff88810d164800 RCX: 6b38f3ab4aaa7b00
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
RBP: ffffc90000b67cf0 R08: ffff8881f7132f3f R09: 1ffff1103ee265e7
R10: dffffc0000000000 R11: ffffed103ee265e8 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff888120643920 R15: ffff8881206431a0
FS:  00007f1bb29476c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000122a0c000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __list_del_entry include/linux/list.h:132 [inline]
 dentry_unlist fs/dcache.c:529 [inline]
 __dentry_kill+0x24c/0x650 fs/dcache.c:582
 dentry_kill+0xc0/0x2a0 fs/dcache.c:-1
 dput+0x47/0x90 fs/dcache.c:893
 __fput+0x580/0x8b0 fs/file_table.c:319
 ____fput+0x15/0x20 fs/file_table.c:339
 task_work_run+0x127/0x190 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop+0xd0/0xe0 kernel/entry/common.c:181
 exit_to_user_mode_prepare+0x87/0xd0 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:307
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f1bb2ae2eb9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1bb2947028 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: 0000000000000000 RBX: 00007f1bb2d5dfa0 RCX: 00007f1bb2ae2eb9
RDX: 0000200000000b80 RSI: 0000200000000100 RDI: 0000000000000000
RBP: 00007f1bb2b50c1f R08: 0000200000000180 R09: 0000000000000000
R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f1bb2d5e038 R14: 00007f1bb2d5dfa0 R15: 00007ffc7c935758
 </TASK>
Modules linked in:
---[ end trace 5242f71ace9b11db ]---
RIP: 0010:__list_del_entry_valid+0x10c/0x120 lib/list_debug.c:59
Code: 48 89 de e8 26 87 56 02 0f 0b 48 c7 c7 80 99 63 85 48 89 de e8 15 87 56 02 0f 0b 48 c7 c7 e0 99 63 85 48 89 de e8 04 87 56 02 <0f> 0b 48 c7 c7 40 9a 63 85 48 89 de e8 f3 86 56 02 0f 0b 00 55 48
RSP: 0018:ffffc90000b67cd0 EFLAGS: 00010246
RAX: 0000000000000054 RBX: ffff88810d164800 RCX: 6b38f3ab4aaa7b00
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
RBP: ffffc90000b67cf0 R08: ffff8881f7132f3f R09: 1ffff1103ee265e7
R10: dffffc0000000000 R11: ffffed103ee265e8 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff888120643920 R15: ffff8881206431a0
FS:  00007f1bb29476c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000122a0c000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400