CVE-2026-107565

A flaw was found in luksmeta. A local attacker with administrative privileges can cause data corruption when saving metadata to a Linux Unified Key Setup (LUKS) device. Due to incorrect boundary calculations and flawed overlap detection, new metadata entries can be written beyond available free space or over existing records. This issue can corrupt stored encrypted payload data or existing metadata, potentially rendering the affected data inaccessible.

This vulnerability is classified as Moderate impact because exploitation requires elevated administrative privileges to write directly to encrypted storage devices and cannot grant unauthorized access or expose sensitive information. Modern Red Hat Enterprise Linux installations create encrypted partitions using the LUKS2 specification by default, which is completely unaffected by this flaw. The risk is therefore confined to legacy deployments operating on LUKS1 containers where privileged utilities write metadata structures.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.