Medium [CVE-2026-89497] Linux kernel: OrangeFS client debug masks parsing leads to buffer overflow
This medium-severity Red Hat Linux advisory covers CVE-2026-89497 affecting Red Hat OpenShift Container Platform 4.
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Summary
A flaw was found in the Linux kernel's Orange File System (orangefs) client. The `orangefs_prepare_cdm_array()` function incorrectly calculates the buffer size for client debug keywords when an entry starts with a space.
This can lead to a buffer overflow, allowing data to be written beyond the intended memory boundary. Such memory corruption could potentially result in a denial of service or other unspecified impacts.
Red Hat severity: Moderate — CVSS 5.6 (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:H). Weakness: CWE-120.
Affected Red Hat products: Red Hat OpenShift Container Platform 4. Red Hat does not currently list a fixing RHSA for this CVE.
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 1 hour 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 1 hour 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 1 hour ago·verify at source
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