R13: 00007f39bfea6038 R14: 00007f39bfea5fa0 R15: 00007ffec4346508 kobject: kobject_add_internal failed for qgroups (error: -12 parent: 395ef67a-297e-477c-816d-cd80a5b93e5d) ------------[ cut here ]------------ kernfs: can not remove 'enabled', no directory WARNING: CPU: 1 PID: 11885 at fs/kernfs/dir.c:1707 kernfs_remove_by_name_ns+0xd1/0x130 fs/kernfs/dir.c:1706 Modules linked in: CPU: 1 UID: 0 PID: 11885 Comm: syz.6.600 Tainted: G W 6.17.0-rc1-syzkaller-00211-g90d970cade8e #0 PREEMPT_{RT,(full)} Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 RIP: 0010:kernfs_remove_by_name_ns+0xd1/0x130 fs/kernfs/dir.c:1706 Code: 4c 89 f7 e8 c1 f2 ff ff 4c 89 f7 e8 49 9c ff ff 31 ed eb 2b e8 20 28 6b ff 90 48 c7 c7 c0 c4 1b 8b 4c 89 f6 e8 b0 fb 2f ff 90 <0f> 0b 90 90 bd fe ff ff ff eb 12 e8 ff 27 6b ff bd fe ff ff ff 48 RSP: 0018:ffffc90004f57b10 EFLAGS: 00010246 RAX: 6a56bf72969d0400 RBX: ffffffff8b4dd0a0 RCX: ffff88802ab8d940 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: ffffed1017124863 R12: 0000000000000000 R13: ffffffff8df40d60 R14: ffffffff8b4dd100 R15: 0000000000000000 FS: 00007f39bdee66c0(0000) GS:ffff8881269c5000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000004ef66000 CR4: 00000000003526f0 Call Trace: kernfs_remove_by_name include/linux/kernfs.h:633 [inline] remove_files fs/sysfs/group.c:28 [inline] sysfs_remove_group+0xfc/0x2c0 fs/sysfs/group.c:322 sysfs_remove_groups+0x54/0xb0 fs/sysfs/group.c:346 __kobject_del+0x84/0x300 lib/kobject.c:595 kobject_del+0x45/0x60 lib/kobject.c:627 btrfs_sysfs_del_qgroups+0x115/0x160 fs/btrfs/sysfs.c:2616 btrfs_sysfs_add_qgroups+0x286/0x2b0 fs/btrfs/sysfs.c:2655 btrfs_quota_enable+0x253/0x2600 fs/btrfs/qgroup.c:1022 btrfs_ioctl_quota_ctl+0x186/0x1c0 fs/btrfs/ioctl.c:3667 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:598 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:584 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f39bfc7ebe9 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:00007f39bdee6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f39bfea5fa0 RCX: 00007f39bfc7ebe9 RDX: 0000200000000140 RSI: 00000000c0109428 RDI: 0000000000000003 RBP: 00007f39bdee6090 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007f39bfea6038 R14: 00007f39bfea5fa0 R15: 00007ffec4346508