Low [CVE-2026-89597] Linux kernel uvesafb: Resource leak due to improper callback unregistration
This low-severity Red Hat Linux advisory covers CVE-2026-89597.
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Summary
A flaw was found in the `uvesafb` component of the Linux kernel. During the initialization process, if the platform driver fails to register, a connector callback is not properly unregistered.
This oversight can lead to a resource leak, which may result in system instability or a denial of service (DoS) condition. Red Hat severity: Low — CVSS 2.3 (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L).
Weakness: CWE-772.
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 44 minutes 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 44 minutes 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 44 minutes ago·verify at source
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