list_del corruption. prev->next should be ffff888120e242b0, but was ffff8881106121b0
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:61!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 7399 Comm: syz.2.2346 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 76 7b 38 02 0f 0b 48 c7 c7 a0 7f 40 85 48 89 de e8 65 7b 38 02 0f 0b 48 c7 c7 00 80 40 85 48 89 de e8 54 7b 38 02 <0f> 0b 48 c7 c7 60 80 40 85 48 89 de e8 43 7b 38 02 0f 0b 00 55 48
RSP: 0018:ffffc90004627d20 EFLAGS: 00010246
RAX: 0000000000000054 RBX: ffff888120e242b0 RCX: 29b0a08992d65e00
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
RBP: ffffc90004627d40 R08: ffff8881f7152fbf R09: 1ffff1103ee2a5f7
R10: dffffc0000000000 R11: ffffed103ee2a5f8 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff8881106121b0 R15: ffff8881106161a0
FS:  00007f8d3aedd6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8d3b0e7600 CR3: 0000000111eba000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __list_del_entry include/linux/list.h:132 [inline]
 dentry_unlist fs/dcache.c:526 [inline]
 __dentry_kill+0x24c/0x650 fs/dcache.c:579
 dentry_kill+0xc0/0x2a0 fs/dcache.c:-1
 dput+0x42/0x80 fs/dcache.c:883
 __fput+0x4fe/0x770 fs/file_table.c:294
 ____fput+0x15/0x20 fs/file_table.c:314
 task_work_run+0x127/0x190 kernel/task_work.c:189
 tracehook_notify_resume include/linux/tracehook.h:188 [inline]
 exit_to_user_mode_loop+0xcb/0xe0 kernel/entry/common.c:172
 exit_to_user_mode_prepare+0x76/0xa0 kernel/entry/common.c:199
 syscall_exit_to_user_mode+0x1d/0x40 kernel/entry/common.c:274
 do_syscall_64+0x3d/0x40 arch/x86/entry/common.c:56
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f8d3b099eb9
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:00007f8d3aedd028 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: 0000000000000000 RBX: 00007f8d3b315090 RCX: 00007f8d3b099eb9
RDX: 0000200000000080 RSI: 0000200000000100 RDI: 0000000000000000
RBP: 00007f8d3b107c1f R08: 0000200000000700 R09: 0000000000000000
R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8d3b315128 R14: 00007f8d3b315090 R15: 00007ffe20e182d8
Modules linked in:
---[ end trace d1173eed98e98439 ]---
RIP: 0010:__list_del_entry_valid+0x10c/0x120 lib/list_debug.c:59
Code: 48 89 de e8 76 7b 38 02 0f 0b 48 c7 c7 a0 7f 40 85 48 89 de e8 65 7b 38 02 0f 0b 48 c7 c7 00 80 40 85 48 89 de e8 54 7b 38 02 <0f> 0b 48 c7 c7 60 80 40 85 48 89 de e8 43 7b 38 02 0f 0b 00 55 48
RSP: 0018:ffffc90004627d20 EFLAGS: 00010246
RAX: 0000000000000054 RBX: ffff888120e242b0 RCX: 29b0a08992d65e00
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
RBP: ffffc90004627d40 R08: ffff8881f7152fbf R09: 1ffff1103ee2a5f7
R10: dffffc0000000000 R11: ffffed103ee2a5f8 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff8881106121b0 R15: ffff8881106161a0
FS:  00007f8d3aedd6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8d3b0e7600 CR3: 0000000111eba000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400