syzbot

RBP: 00007fa7baf85f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa7bb159fa0 R14: 00007fa7bb159fa0 R15: 0000000000000001
---[ end trace 75934f32e059f13b ]---
list_del corruption. prev->next should be ffff88810cfb06f0, but was ffff888126ceb800
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:61!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 389 Comm: syz.2.17 Tainted: G        W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2025
RIP: 0010:__list_del_entry_valid+0x10c/0x120 lib/list_debug.c:59
Code: 48 89 de e8 66 fe 31 02 0f 0b 48 c7 c7 20 27 20 85 48 89 de e8 55 fe 31 02 0f 0b 48 c7 c7 80 27 20 85 48 89 de e8 44 fe 31 02 <0f> 0b 48 c7 c7 e0 27 20 85 48 89 de e8 33 fe 31 02 0f 0b 00 55 48
RSP: 0018:ffffc90002f97c58 EFLAGS: 00010246
RAX: 0000000000000054 RBX: ffff88810cfb06f0 RCX: 93bcfc5b6c1e6400
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
RBP: ffffc90002f97c78 R08: dffffc0000000000 R09: fffff520005f2ec1
R10: fffff520005f2ec1 R11: 1ffff920005f2ec0 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff888126ceb800 R15: ffff888126ceb6f0
FS:  000055558504b500(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000056030c86cf08 CR3: 0000000129e0c000 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
 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
 do_rmdir+0x235/0x620 fs/namei.c:3914
 __do_sys_rmdir fs/namei.c:3930 [inline]
 __se_sys_rmdir fs/namei.c:3928 [inline]
 __x64_sys_rmdir+0x49/0x50 fs/namei.c:3928
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fa7baf02ec9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fffdd46bbf8 EFLAGS: 00000246 ORIG_RAX: 0000000000000054
RAX: ffffffffffffffda RBX: 00007fa7bb159fa0 RCX: 00007fa7baf02ec9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00002000000006c0
RBP: 00007fa7baf85f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa7bb159fa0 R14: 00007fa7bb159fa0 R15: 0000000000000001
Modules linked in:
---[ end trace 75934f32e059f13c ]---
RIP: 0010:__list_del_entry_valid+0x10c/0x120 lib/list_debug.c:59
Code: 48 89 de e8 66 fe 31 02 0f 0b 48 c7 c7 20 27 20 85 48 89 de e8 55 fe 31 02 0f 0b 48 c7 c7 80 27 20 85 48 89 de e8 44 fe 31 02 <0f> 0b 48 c7 c7 e0 27 20 85 48 89 de e8 33 fe 31 02 0f 0b 00 55 48
RSP: 0018:ffffc90002f97c58 EFLAGS: 00010246
RAX: 0000000000000054 RBX: ffff88810cfb06f0 RCX: 93bcfc5b6c1e6400
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000
RBP: ffffc90002f97c78 R08: dffffc0000000000 R09: fffff520005f2ec1
R10: fffff520005f2ec1 R11: 1ffff920005f2ec0 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff888126ceb800 R15: ffff888126ceb6f0
FS:  000055558504b500(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000056030c86cf08 CR3: 0000000129e0c000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400