list_del corruption. prev->next should be ffff8881102804d0, but was ffff88811038f5e0
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:61!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 3969 Comm: syz-executor Tainted: G        W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:__list_del_entry_valid+0x10c/0x120 lib/list_debug.c:59
Code: 48 89 de e8 c6 18 32 02 0f 0b 48 c7 c7 a0 29 20 85 48 89 de e8 b5 18 32 02 0f 0b 48 c7 c7 00 2a 20 85 48 89 de e8 a4 18 32 02 <0f> 0b 48 c7 c7 60 2a 20 85 48 89 de e8 93 18 32 02 0f 0b 00 55 48
RSP: 0018:ffffc9000192f8f0 EFLAGS: 00010246
RAX: 0000000000000054 RBX: ffff8881102804d0 RCX: 87b4140f8fa0dd00
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
RBP: ffffc9000192f910 R08: dffffc0000000000 R09: ffffed103ee0a5f8
R10: ffffed103ee0a5f8 R11: 1ffff1103ee0a5f7 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff88811038f5e0 R15: ffff8881102f76f0
FS:  000055556378b500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555637a64a8 CR3: 000000012213b000 CR4: 00000000003506b0
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
 path_put+0x39/0x60 fs/namei.c:499
 dentry_release+0x4f/0xa0 fs/incfs/vfs.c:1591
 __dentry_kill+0x4b5/0x650 fs/dcache.c:588
 dentry_kill+0xc0/0x2a0 fs/dcache.c:-1
 dput+0x42/0x80 fs/dcache.c:883
 path_put+0x39/0x60 fs/namei.c:499
 dentry_release+0x4f/0xa0 fs/incfs/vfs.c:1591
 __dentry_kill+0x4b5/0x650 fs/dcache.c:588
 shrink_dentry_list+0x38e/0x500 fs/dcache.c:1146
 shrink_dcache_parent+0xa3/0x250 fs/dcache.c:-1
 do_one_tree+0x27/0x150 fs/dcache.c:1627
 shrink_dcache_for_umount+0x6a/0x110 fs/dcache.c:1644
 generic_shutdown_super+0x66/0x320 fs/super.c:447
 kill_anon_super+0x3a/0x70 fs/super.c:1131
 incfs_kill_sb+0x4c/0x210 fs/incfs/vfs.c:1965
 deactivate_locked_super+0xa0/0x100 fs/super.c:335
 deactivate_super+0xaf/0xe0 fs/super.c:366
 cleanup_mnt+0x446/0x500 fs/namespace.c:1114
 __cleanup_mnt+0x19/0x20 fs/namespace.c:1121
 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: 0033:0x7ff2377d42f7
Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffe4ac55978 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007ff237855d7d RCX: 00007ff2377d42f7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe4ac55a30
RBP: 00007ffe4ac55a30 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffe4ac56ac0
R13: 00007ff237855d7d R14: 00000000000bcc4a R15: 00007ffe4ac56b00
Modules linked in:
---[ end trace ca12048832c7e7af ]---
RIP: 0010:__list_del_entry_valid+0x10c/0x120 lib/list_debug.c:59
Code: 48 89 de e8 c6 18 32 02 0f 0b 48 c7 c7 a0 29 20 85 48 89 de e8 b5 18 32 02 0f 0b 48 c7 c7 00 2a 20 85 48 89 de e8 a4 18 32 02 <0f> 0b 48 c7 c7 60 2a 20 85 48 89 de e8 93 18 32 02 0f 0b 00 55 48
RSP: 0018:ffffc9000192f8f0 EFLAGS: 00010246
RAX: 0000000000000054 RBX: ffff8881102804d0 RCX: 87b4140f8fa0dd00
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
RBP: ffffc9000192f910 R08: dffffc0000000000 R09: ffffed103ee0a5f8
R10: ffffed103ee0a5f8 R11: 1ffff1103ee0a5f7 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff88811038f5e0 R15: ffff8881102f76f0
FS:  000055556378b500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555637a64a8 CR3: 000000012213b000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400