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: 7621 at fs/kernfs/dir.c:1707 kernfs_remove_by_name_ns+0xd0/0x14c fs/kernfs/dir.c:1706 Modules linked in: CPU: 1 UID: 0 PID: 7621 Comm: syz.3.190 Not tainted 6.16.0-rc7-syzkaller-g82af5ea7c611 #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : kernfs_remove_by_name_ns+0xd0/0x14c fs/kernfs/dir.c:1706 lr : kernfs_remove_by_name_ns+0xd0/0x14c fs/kernfs/dir.c:1706 sp : ffff80009d4378b0 x29: ffff80009d4378b0 x28: ffff0000f5c1e680 x27: 1fffe0001b66aa05 x26: dfff800000000000 x25: ffff80008fe05968 x24: 1ffff00011680214 x23: dfff800000000000 x22: 0000000000000000 x21: 0000000000000000 x20: ffff80008b401100 x19: ffff80008b4010a0 x18: 00000000ffffffff x17: 0000000000000000 x16: ffff80008af01c68 x15: 0000000000000001 x14: 1fffe000337d64e2 x13: 0000000000000000 x12: 0000000000000000 x11: ffff6000337d64e3 x10: 0000000000ff0100 x9 : 8c5db1884e6d7600 x8 : 8c5db1884e6d7600 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80009d4371f8 x4 : ffff80008f776bc0 x3 : ffff8000807bba4c x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000000 Call trace: kernfs_remove_by_name_ns+0xd0/0x14c fs/kernfs/dir.c:1706 (P) kernfs_remove_by_name include/linux/kernfs.h:633 [inline] remove_files fs/sysfs/group.c:28 [inline] sysfs_remove_group+0xf8/0x29c fs/sysfs/group.c:322 sysfs_remove_groups+0x5c/0xb4 fs/sysfs/group.c:346 __kobject_del+0x90/0x2d4 lib/kobject.c:595 kobject_del+0x48/0x68 lib/kobject.c:627 btrfs_sysfs_del_qgroups+0x100/0x14c fs/btrfs/sysfs.c:2610 btrfs_sysfs_add_qgroups+0x238/0x268 fs/btrfs/sysfs.c:2649 btrfs_quota_enable+0x224/0x1c70 fs/btrfs/qgroup.c:1030 btrfs_ioctl_quota_ctl+0x178/0x1bc fs/btrfs/ioctl.c:3673 btrfs_ioctl+0x86c/0xc3c fs/btrfs/ioctl.c:5323 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl fs/ioctl.c:893 [inline] __arm64_sys_ioctl+0x14c/0x1c4 fs/ioctl.c:893 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x58/0x180 arch/arm64/kernel/entry-common.c:879 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:898 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 irq event stamp: 49114 hardirqs last enabled at (49113): [] __up_console_sem kernel/printk/printk.c:344 [inline] hardirqs last enabled at (49113): [] __console_unlock+0x70/0xc4 kernel/printk/printk.c:2885 hardirqs last disabled at (49114): [] el1_brk64+0x1c/0x48 arch/arm64/kernel/entry-common.c:574 softirqs last enabled at (48936): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (48934): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ kernfs: can not remove 'inconsistent', no directory WARNING: CPU: 0 PID: 7621 at fs/kernfs/dir.c:1707 kernfs_remove_by_name_ns+0xd0/0x14c fs/kernfs/dir.c:1706 Modules linked in: CPU: 0 UID: 0 PID: 7621 Comm: syz.3.190 Tainted: G W 6.16.0-rc7-syzkaller-g82af5ea7c611 #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : kernfs_remove_by_name_ns+0xd0/0x14c fs/kernfs/dir.c:1706 lr : kernfs_remove_by_name_ns+0xd0/0x14c fs/kernfs/dir.c:1706 sp : ffff80009d4378b0 x29: ffff80009d4378b0 x28: ffff0000f5c1e680 x27: 1fffe0001b66aa05 x26: dfff800000000000 x25: ffff80008fe05970 x24: 1ffff00011680214 x23: dfff800000000000 x22: 0000000000000000 x21: 0000000000000000 x20: ffff80008b401120 x19: ffff80008b4010a0 x18: 00000000ffffffff x17: 0000000000000000 x16: ffff80008ae69508 x15: ffff700011ee0158 x14: 1ffff00011ee0158 x13: 0000000000000004 x12: ffffffffffffffff x11: ffff700011ee0158 x10: 0000000000ff0100 x9 : 8c5db1884e6d7600 x8 : 8c5db1884e6d7600 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80009d4371f8 x4 : ffff80008f776bc0 x3 : ffff80008054bdfc x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000000 Call trace: kernfs_remove_by_name_ns+0xd0/0x14c fs/kernfs/dir.c:1706 (P) kernfs_remove_by_name include/linux/kernfs.h:633 [inline] remove_files fs/sysfs/group.c:28 [inline] sysfs_remove_group+0xf8/0x29c fs/sysfs/group.c:322 sysfs_remove_groups+0x5c/0xb4 fs/sysfs/group.c:346 __kobject_del+0x90/0x2d4 lib/kobject.c:595 kobject_del+0x48/0x68 lib/kobject.c:627 btrfs_sysfs_del_qgroups+0x100/0x14c fs/btrfs/sysfs.c:2610 btrfs_sysfs_add_qgroups+0x238/0x268 fs/btrfs/sysfs.c:2649 btrfs_quota_enable+0x224/0x1c70 fs/btrfs/qgroup.c:1030 btrfs_ioctl_quota_ctl+0x178/0x1bc fs/btrfs/ioctl.c:3673 btrfs_ioctl+0x86c/0xc3c fs/btrfs/ioctl.c:5323 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl fs/ioctl.c:893 [inline] __arm64_sys_ioctl+0x14c/0x1c4 fs/ioctl.c:893 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x58/0x180 arch/arm64/kernel/entry-common.c:879 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:898 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 irq event stamp: 49484 hardirqs last enabled at (49483): [] __up_console_sem kernel/printk/printk.c:344 [inline] hardirqs last enabled at (49483): [] __console_unlock+0x70/0xc4 kernel/printk/printk.c:2885 hardirqs last disabled at (49484): [] el1_brk64+0x1c/0x48 arch/arm64/kernel/entry-common.c:574 softirqs last enabled at (49466): [] softirq_handle_end kernel/softirq.c:425 [inline] softirqs last enabled at (49466): [] handle_softirqs+0xaf8/0xc88 kernel/softirq.c:607 softirqs last disabled at (49443): [] __do_softirq+0x14/0x20 kernel/softirq.c:613 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ kernfs: can not remove 'drop_subtree_threshold', no directory WARNING: CPU: 0 PID: 7621 at fs/kernfs/dir.c:1707 kernfs_remove_by_name_ns+0xd0/0x14c fs/kernfs/dir.c:1706 Modules linked in: CPU: 0 UID: 0 PID: 7621 Comm: syz.3.190 Tainted: G W 6.16.0-rc7-syzkaller-g82af5ea7c611 #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : kernfs_remove_by_name_ns+0xd0/0x14c fs/kernfs/dir.c:1706 lr : kernfs_remove_by_name_ns+0xd0/0x14c fs/kernfs/dir.c:1706 sp : ffff80009d4378b0 x29: ffff80009d4378b0 x28: ffff0000f5c1e680 x27: 1fffe0001b66aa05 x26: dfff800000000000 x25: ffff80008fe05978 x24: 1ffff00011680214 x23: dfff800000000000 x22: 0000000000000000 x21: 0000000000000000 x20: ffff80008b401140 x19: ffff80008b4010a0 x18: 00000000ffffffff x17: 0000000000000000 x16: ffff80008ae69508 x15: ffff700011ee0158 x14: 1ffff00011ee0158 x13: 0000000000000004 x12: ffffffffffffffff x11: ffff700011ee0158 x10: 0000000000ff0100 x9 : 8c5db1884e6d7600 x8 : 8c5db1884e6d7600 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80009d4371f8 x4 : ffff80008f776bc0 x3 : ffff80008054bdfc x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000000 Call trace: kernfs_remove_by_name_ns+0xd0/0x14c fs/kernfs/dir.c:1706 (P) kernfs_remove_by_name include/linux/kernfs.h:633 [inline] remove_files fs/sysfs/group.c:28 [inline] sysfs_remove_group+0xf8/0x29c fs/sysfs/group.c:322 sysfs_remove_groups+0x5c/0xb4 fs/sysfs/group.c:346 __kobject_del+0x90/0x2d4 lib/kobject.c:595 kobject_del+0x48/0x68 lib/kobject.c:627 btrfs_sysfs_del_qgroups+0x100/0x14c fs/btrfs/sysfs.c:2610 btrfs_sysfs_add_qgroups+0x238/0x268 fs/btrfs/sysfs.c:2649 btrfs_quota_enable+0x224/0x1c70 fs/btrfs/qgroup.c:1030 btrfs_ioctl_quota_ctl+0x178/0x1bc fs/btrfs/ioctl.c:3673 btrfs_ioctl+0x86c/0xc3c fs/btrfs/ioctl.c:5323 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl fs/ioctl.c:893 [inline] __arm64_sys_ioctl+0x14c/0x1c4 fs/ioctl.c:893 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x58/0x180 arch/arm64/kernel/entry-common.c:879 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:898 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 irq event stamp: 49736 hardirqs last enabled at (49735): [] __up_console_sem kernel/printk/printk.c:344 [inline] hardirqs last enabled at (49735): [] __console_unlock+0x70/0xc4 kernel/printk/printk.c:2885 hardirqs last disabled at (49736): [] el1_brk64+0x1c/0x48 arch/arm64/kernel/entry-common.c:574 softirqs last enabled at (49710): [] softirq_handle_end kernel/softirq.c:425 [inline] softirqs last enabled at (49710): [] handle_softirqs+0xaf8/0xc88 kernel/softirq.c:607 softirqs last disabled at (49487): [] __do_softirq+0x14/0x20 kernel/softirq.c:613 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ kernfs: can not remove 'mode', no directory WARNING: CPU: 0 PID: 7621 at fs/kernfs/dir.c:1707 kernfs_remove_by_name_ns+0xd0/0x14c fs/kernfs/dir.c:1706 Modules linked in: CPU: 0 UID: 0 PID: 7621 Comm: syz.3.190 Tainted: G W 6.16.0-rc7-syzkaller-g82af5ea7c611 #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : kernfs_remove_by_name_ns+0xd0/0x14c fs/kernfs/dir.c:1706 lr : kernfs_remove_by_name_ns+0xd0/0x14c fs/kernfs/dir.c:1706 sp : ffff80009d4378b0 x29: ffff80009d4378b0 x28: ffff0000f5c1e680 x27: 1fffe0001b66aa05 x26: dfff800000000000 x25: ffff80008fe05980 x24: 1ffff00011680214 x23: dfff800000000000 x22: 0000000000000000 x21: 0000000000000000 x20: ffff80008b401180 x19: ffff80008b4010a0 x18: 00000000ffffffff x17: 0000000000000000 x16: ffff80008ae69508 x15: ffff700011ee0158 x14: 1ffff00011ee0158 x13: 0000000000000004 x12: ffffffffffffffff x11: ffff700011ee0158 x10: 0000000000ff0100 x9 : 8c5db1884e6d7600 x8 : 8c5db1884e6d7600 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80009d4371f8 x4 : ffff80008f776bc0 x3 : ffff80008054bdfc x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000000 Call trace: kernfs_remove_by_name_ns+0xd0/0x14c fs/kernfs/dir.c:1706 (P) kernfs_remove_by_name include/linux/kernfs.h:633 [inline] remove_files fs/sysfs/group.c:28 [inline] sysfs_remove_group+0xf8/0x29c fs/sysfs/group.c:322 sysfs_remove_groups+0x5c/0xb4 fs/sysfs/group.c:346 __kobject_del+0x90/0x2d4 lib/kobject.c:595 kobject_del+0x48/0x68 lib/kobject.c:627 btrfs_sysfs_del_qgroups+0x100/0x14c fs/btrfs/sysfs.c:2610 btrfs_sysfs_add_qgroups+0x238/0x268 fs/btrfs/sysfs.c:2649 btrfs_quota_enable+0x224/0x1c70 fs/btrfs/qgroup.c:1030 btrfs_ioctl_quota_ctl+0x178/0x1bc fs/btrfs/ioctl.c:3673 btrfs_ioctl+0x86c/0xc3c fs/btrfs/ioctl.c:5323 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl fs/ioctl.c:893 [inline] __arm64_sys_ioctl+0x14c/0x1c4 fs/ioctl.c:893 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x58/0x180 arch/arm64/kernel/entry-common.c:879 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:898 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 irq event stamp: 49870 hardirqs last enabled at (49869): [] __up_console_sem kernel/printk/printk.c:344 [inline] hardirqs last enabled at (49869): [] __console_unlock+0x70/0xc4 kernel/printk/printk.c:2885 hardirqs last disabled at (49870): [] el1_brk64+0x1c/0x48 arch/arm64/kernel/entry-common.c:574 softirqs last enabled at (49844): [] softirq_handle_end kernel/softirq.c:425 [inline] softirqs last enabled at (49844): [] handle_softirqs+0xaf8/0xc88 kernel/softirq.c:607 softirqs last disabled at (49739): [] __do_softirq+0x14/0x20 kernel/softirq.c:613 ---[ end trace 0000000000000000 ]---