CVE-2026-64256
Medium
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.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedJul 25, 2026
First seenJul 25, 2026
How to fix
Update
- linux linux_kernel6.12.96, 6.18.39, 7.1.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 6.8 ≤ v < 6.12.96, 6.13 ≤ v < 6.18.39, 6.19 ≤ v < 7.1.4, 7.2 | 6.12.96, 6.18.39, 7.1.4 |
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