In the Linux kernel, the following vulnerability has been resolved:

quota: fix warning in dqgrab()

There's issue as follows when do fault injection:
WARNING: CPU: 1 PID: 14870 at include/linux/quotaops.h:51 dquot_disable+0x13b7/0x18c0
Modules linked in:
CPU: 1 PID: 14870 Comm: fsconfig Not tainted 6.3.0-next-20230505-00006-g5107a9c821af-dirty #541
RIP: 0010:dquot_disable+0x13b7/0x18c0
RSP: 0018:ffffc9000acc79e0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff88825e41b980
RDX: 0000000000000000 RSI: ffff88825e41b980 RDI: 0000000000000002
RBP: ffff888179f68000 R08: ffffffff82087ca7 R09: 0000000000000000
R10: 0000000000000001 R11: ffffed102f3ed026 R12: ffff888179f68130
R13: ffff888179f68110 R14: dffffc0000000000 R15: ffff888179f68118
FS: 00007f450a073740(0000) GS:ffff88882fc00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe96f2efd8 CR3: 000000025c8ad000 CR4: 00000000000006e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
dquot_load_quota_sb+0xd53/0x1060
dquot_resume+0x172/0x230
ext4_reconfigure+0x1dc6/0x27b0
reconfigure_super+0x515/0xa90
__x64_sys_fsconfig+0xb19/0xd20
do_syscall_64+0x39/0xb0
entry_SYSCALL_64_after_hwframe+0x63/0xcd

Above issue may happens as follows:
ProcessA ProcessB ProcessC
sys_fsconfig
vfs_fsconfig_locked
reconfigure_super
ext4_remount
dquot_suspend -> suspend all type quota

sys_fsconfig
vfs_fsconfig_locked
reconfigure_super
ext4_remount
dquot_resume
ret = dquot_load_quota_sb
add_dquot_ref
do_open -> open file O_RDWR
vfs_open
do_dentry_open
get_write_access
atomic_inc_unless_negative(&inode->i_writecount)
ext4_file_open
dquot_file_open
dquot_initialize
__dquot_initialize
dqget
atomic_inc(&dquot->dq_count);

__dquot_initialize
__dquot_initialize
dqget
if (!test_bit(DQ_ACTIVE_B, &dquot->dq_flags))
ext4_acquire_dquot
-> Return error DQ_ACTIVE_B flag isn't set
dquot_disable
invalidate_dquots
if (atomic_read(&dquot->dq_count))
dqgrab
WARN_ON_ONCE(!test_bit(DQ_ACTIVE_B, &dquot->dq_flags))
-> Trigger warning

In the above scenario, 'dquot->dq_flags' has no DQ_ACTIVE_B is normal when
dqgrab().
To solve above issue just replace the dqgrab() use in invalidate_dquots() with
atomic_inc(&dquot->dq_count).

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00036.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
9f985cb6c45bc3f8b7e161c9658d409d051d576f affected
< 6478eabc92274efae6269da7c515ba2b4c8e88d8
9f985cb6c45bc3f8b7e161c9658d409d051d576f affected
< 965bad2bf1afef64ec16249da676dc7310cca32e
9f985cb6c45bc3f8b7e161c9658d409d051d576f affected
< 3f378783c47b5749317ea008d8c931d6d3986d8f
9f985cb6c45bc3f8b7e161c9658d409d051d576f affected
< cbaebbba722cb9738c55903efce11f51cdd97bee
9f985cb6c45bc3f8b7e161c9658d409d051d576f affected
< 579d814de87c3cac69c9b261efa165d07cde3357
9f985cb6c45bc3f8b7e161c9658d409d051d576f affected
< 6432843debe1ec7d76c5b2f76c67f9c5df22436e
9f985cb6c45bc3f8b7e161c9658d409d051d576f affected
< 6f4e543d277a12dfeff027e6ab24a170e1bfc160
9f985cb6c45bc3f8b7e161c9658d409d051d576f affected
< d6a95db3c7ad160bc16b89e36449705309b52bcb
b5258061a2a8f657aa5900dd3c1ded9e868e3544 affected
—
Linux Linux affected
Version Status Constraints
3.15 affected
—
0 unaffected
< 3.15
4.14.324 unaffected
≤ 4.14.*
4.19.293 unaffected
≤ 4.19.*
5.4.255 unaffected
≤ 5.4.*
5.10.192 unaffected
≤ 5.10.*
5.15.123 unaffected
≤ 5.15.*
6.1.42 unaffected
≤ 6.1.*
6.4.7 unaffected
≤ 6.4.*
6.5 unaffected
≤ *

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Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/3f378783c47b5749317ea008d8c931d6d3986d8f cve-icon cve-icon
https://git.kernel.org/stable/c/579d814de87c3cac69c9b261efa165d07cde3357 cve-icon cve-icon
https://git.kernel.org/stable/c/6432843debe1ec7d76c5b2f76c67f9c5df22436e cve-icon cve-icon
https://git.kernel.org/stable/c/6478eabc92274efae6269da7c515ba2b4c8e88d8 cve-icon cve-icon
https://git.kernel.org/stable/c/6f4e543d277a12dfeff027e6ab24a170e1bfc160 cve-icon cve-icon
https://git.kernel.org/stable/c/965bad2bf1afef64ec16249da676dc7310cca32e cve-icon cve-icon
https://git.kernel.org/stable/c/cbaebbba722cb9738c55903efce11f51cdd97bee cve-icon cve-icon
https://git.kernel.org/stable/c/d6a95db3c7ad160bc16b89e36449705309b52bcb cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025123023-CVE-2023-54177-8df7@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2023-54177 cve-icon
https://www.cve.org/CVERecord?id=CVE-2023-54177 cve-icon
History

Wed, 31 Dec 2025 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Low

Tue, 30 Dec 2025 12:30:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: quota: fix warning in dqgrab() There's issue as follows when do fault injection: WARNING: CPU: 1 PID: 14870 at include/linux/quotaops.h:51 dquot_disable+0x13b7/0x18c0 Modules linked in: CPU: 1 PID: 14870 Comm: fsconfig Not tainted 6.3.0-next-20230505-00006-g5107a9c821af-dirty #541 RIP: 0010:dquot_disable+0x13b7/0x18c0 RSP: 0018:ffffc9000acc79e0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff88825e41b980 RDX: 0000000000000000 RSI: ffff88825e41b980 RDI: 0000000000000002 RBP: ffff888179f68000 R08: ffffffff82087ca7 R09: 0000000000000000 R10: 0000000000000001 R11: ffffed102f3ed026 R12: ffff888179f68130 R13: ffff888179f68110 R14: dffffc0000000000 R15: ffff888179f68118 FS: 00007f450a073740(0000) GS:ffff88882fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe96f2efd8 CR3: 000000025c8ad000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> dquot_load_quota_sb+0xd53/0x1060 dquot_resume+0x172/0x230 ext4_reconfigure+0x1dc6/0x27b0 reconfigure_super+0x515/0xa90 __x64_sys_fsconfig+0xb19/0xd20 do_syscall_64+0x39/0xb0 entry_SYSCALL_64_after_hwframe+0x63/0xcd Above issue may happens as follows: ProcessA ProcessB ProcessC sys_fsconfig vfs_fsconfig_locked reconfigure_super ext4_remount dquot_suspend -> suspend all type quota sys_fsconfig vfs_fsconfig_locked reconfigure_super ext4_remount dquot_resume ret = dquot_load_quota_sb add_dquot_ref do_open -> open file O_RDWR vfs_open do_dentry_open get_write_access atomic_inc_unless_negative(&inode->i_writecount) ext4_file_open dquot_file_open dquot_initialize __dquot_initialize dqget atomic_inc(&dquot->dq_count); __dquot_initialize __dquot_initialize dqget if (!test_bit(DQ_ACTIVE_B, &dquot->dq_flags)) ext4_acquire_dquot -> Return error DQ_ACTIVE_B flag isn't set dquot_disable invalidate_dquots if (atomic_read(&dquot->dq_count)) dqgrab WARN_ON_ONCE(!test_bit(DQ_ACTIVE_B, &dquot->dq_flags)) -> Trigger warning In the above scenario, 'dquot->dq_flags' has no DQ_ACTIVE_B is normal when dqgrab(). To solve above issue just replace the dqgrab() use in invalidate_dquots() with atomic_inc(&dquot->dq_count).
Title quota: fix warning in dqgrab()
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-01-05T11:36:48.949Z

Reserved: 2025-12-30T12:06:44.496Z

Link: CVE-2023-54177

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-12-30T13:16:05.590

Modified: 2025-12-31T20:43:05.160

Link: CVE-2023-54177

cve-icon Redhat

Severity : Low

Publid Date: 2025-12-30T00:00:00Z

Links: CVE-2023-54177 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses

No weakness.