Описание
In the Linux kernel, the following vulnerability has been resolved:
xfs: fix ilock leak on error in xfs_dq_get_next_id
xfs_dq_get_next_id() takes the quota inode ILOCK before calling
xfs_iread_extents(). If xfs_iread_extents() fails, the function returns
immediately without releasing the lock, leaking the quota inode ILOCK.
This can leave the quota inode locked and cause subsequent quota
operations to hang.
Fix this by jumping to a common unlock path on error instead of returning
directly.
A flaw was found in the XFS filesystem component of the Linux kernel. The xfs_dq_get_next_id() function fails to release an inode lock (ilock) if an error occurs during extent reading. This ilock leak can leave the quota inode permanently locked, preventing further quota operations and leading to a denial of service for affected systems.
Отчет
This flaw has a LOW impact. In the Linux kernel XFS filesystem, xfs_dq_get_next_id() can leak the quota inode's ILOCK on an error path: if xfs_iread_extents() fails, the function returns without releasing the inode lock, leaving the quota inode locked and causing subsequent XFS quota operations to hang. A local user able to reach the XFS quota control path (e.g. Q_XGETNEXTQUOTA) on a mounted XFS filesystem with quotas enabled could, when the extent-loading error condition occurs, cause a denial of service limited to XFS quota management. The issue is not network reachable and has no confidentiality, integrity, memory-corruption, or privilege-escalation impact.
Меры по смягчению последствий
This issue only affects systems using XFS filesystems with quota support enabled and is limited to XFS quota management operations. No mitigation other than applying the kernel update meets Red Hat Product Security's criteria for ease of use, broad applicability, and stability.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 10 | kernel | Fix deferred | ||
| Red Hat Enterprise Linux 6 | kernel | Not affected | ||
| Red Hat Enterprise Linux 7 | kernel | Fix deferred | ||
| Red Hat Enterprise Linux 7 | kernel-rt | Fix deferred | ||
| Red Hat Enterprise Linux 8 | kernel | Fix deferred | ||
| Red Hat Enterprise Linux 8 | kernel-rt | Fix deferred | ||
| Red Hat Enterprise Linux 9 | kernel | Fix deferred | ||
| Red Hat Enterprise Linux 9 | kernel-rt | Fix deferred |
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Дополнительная информация
Статус:
EPSS
4.7 Medium
CVSS3
Связанные уязвимости
In the Linux kernel, the following vulnerability has been resolved: xfs: fix ilock leak on error in xfs_dq_get_next_id xfs_dq_get_next_id() takes the quota inode ILOCK before calling xfs_iread_extents(). If xfs_iread_extents() fails, the function returns immediately without releasing the lock, leaking the quota inode ILOCK. This can leave the quota inode locked and cause subsequent quota operations to hang. Fix this by jumping to a common unlock path on error instead of returning directly.
In the Linux kernel, the following vulnerability has been resolved: xfs: fix ilock leak on error in xfs_dq_get_next_id xfs_dq_get_next_id() takes the quota inode ILOCK before calling xfs_iread_extents(). If xfs_iread_extents() fails, the function returns immediately without releasing the lock, leaking the quota inode ILOCK. This can leave the quota inode locked and cause subsequent quota operations to hang. Fix this by jumping to a common unlock path on error instead of returning directly.
In the Linux kernel, the following vulnerability has been resolved: x ...
In the Linux kernel, the following vulnerability has been resolved: xfs: fix ilock leak on error in xfs_dq_get_next_id xfs_dq_get_next_id() takes the quota inode ILOCK before calling xfs_iread_extents(). If xfs_iread_extents() fails, the function returns immediately without releasing the lock, leaking the quota inode ILOCK. This can leave the quota inode locked and cause subsequent quota operations to hang. Fix this by jumping to a common unlock path on error instead of returning directly.
EPSS
4.7 Medium
CVSS3