CVE-2026-64256

5.5 mediumEPSS 0.2%

Medium (5.5) in linux linux kernel. EPSS 0.2% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

5.5 medium

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

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 5% of CVEs (scores of 2026-10-31)
Published: 2026-07-25
Modified: 2026-08-17
Record from: the NVD, synced 2026-10-19

Affected

linux:linux_kernel

References

https://git.kernel.org/stable/c/249e311c2ba392ceaf9ebfc145a46922946f069a
https://git.kernel.org/stable/c/2b14fe1e0924c6b901f4256456342569c5397abe
https://git.kernel.org/stable/c/d1c4c40599c376aeb0c93068a2ae344e79ee4b90
https://git.kernel.org/stable/c/d766e4e5e85d829629c3ba503802fe1303d7b591

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