PT-2026-64477 · Linux · Linux

CVE-2026-64256

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Published

2026-07-25

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Updated

2026-07-25

None

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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.
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Related Identifiers

CVE-2026-64256

Affected Products

Linux