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CVE-2026-64256

Опубликовано: 25 июл. 2026
Источник: redhat
CVSS3: 5.5
EPSS Низкий

Описание

A flaw was found in the Linux kernel's XFS filesystem. This vulnerability occurs in the dqiterate function, where an unsigned 32-bit quota identifier (q_id) can wrap around to zero if it reaches its maximum value. This integer overflow can cause the iteration of quota IDs to restart, potentially leading to a denial of service (DoS) by preventing proper processing of filesystem quotas.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat Enterprise Linux 10kernelFix deferred
Red Hat Enterprise Linux 6kernelNot affected
Red Hat Enterprise Linux 7kernelNot affected
Red Hat Enterprise Linux 7kernel-rtNot affected
Red Hat Enterprise Linux 8kernelNot affected
Red Hat Enterprise Linux 8kernel-rtNot affected
Red Hat Enterprise Linux 9kernelFix deferred
Red Hat Enterprise Linux 9kernel-rtFix deferred
Red Hat Hardened Imageserlang27Fix deferred

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Дополнительная информация

Статус:

Low
Дефект:
CWE-190
https://bugzilla.redhat.com/show_bug.cgi?id=2507066kernel: xfs: don't wrap around quota ids in dqiterate

EPSS

Процентиль: 10%
0.002
Низкий

5.5 Medium

CVSS3

Связанные уязвимости

ubuntu
8 дней назад

In the Linux kernel, the following vulnerability has been resolved: xfs: don't wrap around quota ids in dqiterate LOLLM noticed that q_id is an unsigned 32-bit variable. If it happens to be set to XFS_DQ_ID_MAX due to a filesystem that actually has a dquot for ID_MAX, then this addition will truncate to zero and the iteration starts over. Fix this by casting to u64.

nvd
8 дней назад

In the Linux kernel, the following vulnerability has been resolved: xfs: don't wrap around quota ids in dqiterate LOLLM noticed that q_id is an unsigned 32-bit variable. If it happens to be set to XFS_DQ_ID_MAX due to a filesystem that actually has a dquot for ID_MAX, then this addition will truncate to zero and the iteration starts over. Fix this by casting to u64.

debian
8 дней назад

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

github
8 дней назад

In the Linux kernel, the following vulnerability has been resolved: xfs: don't wrap around quota ids in dqiterate LOLLM noticed that q_id is an unsigned 32-bit variable. If it happens to be set to XFS_DQ_ID_MAX due to a filesystem that actually has a dquot for ID_MAX, then this addition will truncate to zero and the iteration starts over. Fix this by casting to u64.

EPSS

Процентиль: 10%
0.002
Низкий

5.5 Medium

CVSS3