list_del corruption. prev->next should be ffff8881389235e0, but was ffff888138923b30. (prev=ffff88810c4855f0)
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:61!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 21239 Comm: syz-executor Tainted: G        W          syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:__list_del_entry_valid+0x10f/0x130 lib/list_debug.c:59
Code: e8 7e 6b 88 02 0f 0b 48 c7 c7 e0 7b ca 85 48 89 de e8 6d 6b 88 02 0f 0b 48 c7 c7 40 7c ca 85 48 89 de 4c 89 f9 e8 59 6b 88 02 <0f> 0b 48 c7 c7 c0 7c ca 85 48 89 de 4c 89 f1 e8 45 6b 88 02 0f 0b
RSP: 0018:ffffc90000b87a48 EFLAGS: 00010246
RAX: 000000000000006d RBX: ffff8881389235e0 RCX: 48b7f63eb4ef9600
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
RBP: ffffc90000b87a68 R08: ffffc90000b87747 R09: 1ffff92000170ee8
R10: dffffc0000000000 R11: fffff52000170ee9 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff888138923b30 R15: ffff88810c4855f0
FS:  0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe0083d2000 CR3: 000000010f912000 CR4: 00000000003526a0
Call Trace:
 <TASK>
 __list_del_entry include/linux/list.h:134 [inline]
 dentry_unlist fs/dcache.c:554 [inline]
 __dentry_kill+0x25d/0x670 fs/dcache.c:607
 dentry_kill+0xc0/0x2a0 fs/dcache.c:-1
 dput+0x42/0x80 fs/dcache.c:918
 incfs_free_mount_info+0x60/0x200 fs/incfs/data_mgmt.c:166
 incfs_kill_sb+0x1b8/0x220 fs/incfs/vfs.c:2003
 deactivate_locked_super+0xb5/0x120 fs/super.c:334
 deactivate_super+0xaf/0xe0 fs/super.c:365
 cleanup_mnt+0x474/0x500 fs/namespace.c:1191
 __cleanup_mnt+0x19/0x20 fs/namespace.c:1198
 task_work_run+0x1e1/0x250 kernel/task_work.c:203
 exit_task_work include/linux/task_work.h:39 [inline]
 do_exit+0xa35/0x2660 kernel/exit.c:886
 do_group_exit+0x210/0x2d0 kernel/exit.c:1028
 __do_sys_exit_group kernel/exit.c:1039 [inline]
 __se_sys_exit_group kernel/exit.c:1037 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1037
 x64_sys_call+0x7b4/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f050579c799
Code: Unable to access opcode bytes at 0x7f050579c76f.
RSP: 002b:00007fff4160b268 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f0505831ff0 RCX: 00007f050579c799
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 0000000000000009 R08: 0000000000000000 R09: 00007f0505831f90
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff4160c520
R13: 00007f0505831f90 R14: 00005555846334e8 R15: 00007fff4160d5f0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__list_del_entry_valid+0x10f/0x130 lib/list_debug.c:59
Code: e8 7e 6b 88 02 0f 0b 48 c7 c7 e0 7b ca 85 48 89 de e8 6d 6b 88 02 0f 0b 48 c7 c7 40 7c ca 85 48 89 de 4c 89 f9 e8 59 6b 88 02 <0f> 0b 48 c7 c7 c0 7c ca 85 48 89 de 4c 89 f1 e8 45 6b 88 02 0f 0b
RSP: 0018:ffffc90000b87a48 EFLAGS: 00010246
RAX: 000000000000006d RBX: ffff8881389235e0 RCX: 48b7f63eb4ef9600
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
RBP: ffffc90000b87a68 R08: ffffc90000b87747 R09: 1ffff92000170ee8
R10: dffffc0000000000 R11: fffff52000170ee9 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff888138923b30 R15: ffff88810c4855f0
FS:  0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe0083d2000 CR3: 000000010f912000 CR4: 00000000003526a0