CVE-2026-64256

MediumCVSS 5.5/10Last modified Aug 17, 2026

Description

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.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected software

No affected versions have been published.

Timeline

Published
Jul 25, 2026
Last modified
Aug 17, 2026
NVD status
Analyzed

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CVE-2026-64256: Medium severity, CVSS 5.5 | Vulnix