CVE-2026-64256 | In the Linux kernel, the following vulnerability has been re…

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.

Metadata

CVE ID: CVE-2026-64256
State: PUBLISHED
Assigner: Linux
Reserved: 2026-07-19 15:36 UTC
Published: 2026-07-25 08:49 UTC
Last updated: 2026-07-25 08:49 UTC
Vendor / Product: Linux / Linux
Sources: cve.org · NVD

Severity & Metrics

No CVSS data available.

Affected products (2)

Vendor	Product	Platform	Versions
Linux	Linux	—	21d7500929c8a0b10e22a6755850c6f9a9280284 < 249e311c2ba392ceaf9ebfc145a46922946f069a, 21d7500929c8a0b10e22a6755850c6f9a9280284 < d1c4c40599c376aeb0c93068a2ae344e79ee4b90, 21d7500929c8a0b10e22a6755850c6f9a9280284 < 2b14fe1e0924c6b901f4256456342569c5397abe, 21d7500929c8a0b10e22a6755850c6f9a9280284 < d766e4e5e85d829629c3ba503802fe1303d7b591
Linux	Linux	—	6.8, 0 < 6.8, 6.12.96 ≤ 6.12., 6.18.39 ≤ 6.18. …

References (4)