CVE-2026-64256In 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.
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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.
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Aug 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
linux linux_kernel linux:linux_kernel | from 6.8 before 6.12.96; from 6.13 before 6.18.39; from 6.19 before 7.1.4; 7.2; 7.2; 7.2 | NVD |
References
- https://git.kernel.org/stable/c/249e311c2ba392ceaf9ebfc145a46922946f069apatch
- https://git.kernel.org/stable/c/2b14fe1e0924c6b901f4256456342569c5397abepatch
- https://git.kernel.org/stable/c/d1c4c40599c376aeb0c93068a2ae344e79ee4b90patch
- https://git.kernel.org/stable/c/d766e4e5e85d829629c3ba503802fe1303d7b591patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.