Medium [CVE-2026-72033] keep the readdir entry size 64-bit in fill_from_part
This medium-severity Red Hat Linux advisory covers CVE-2026-72033.
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Summary
A flaw was found in OrangeFS, a file system within the Linux kernel. An integer overflow occurs in the fill_from_part() function when calculating the size of a directory entry.
This happens because the size is computed as a 64-bit value but stored as a 32-bit value, allowing a large entry length to wrap around. A local attacker or malicious userspace client can exploit this by providing a specially crafted directory entry, leading to an out-of-bounds read and a kernel crash.
Red Hat severity: Moderate — CVSS 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-125.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · medium-confidence parse· fetched 3 hours ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · medium-confidence parse· fetched 3 hours ago·verify at source
Mitigation
The source record does not include mitigation steps. That is not a statement that no fix exists — read the vendor advisory below for the authoritative guidance.
Official advisory · medium-confidence parse· fetched 3 hours ago·verify at source
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