CVE-2026-107565
Luksmeta: incomplete gap-boundary and overlap checks in luks1 metadata allocator allow data corruption
- State
- Published
- Severity
- 5.1 Medium
- Published
- Oct 8, 2026
- Updated
- Oct 31, 2026
- Reserved
- Oct 8, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.1 Medium | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:L | redhat |
Weaknesses
- CWE-1284 Improper Validation of Specified Quantity in Input
Affected Products
| Product | Versions |
|---|---|
Red Hat Enterprise Linux 10Red Hat | |
Red Hat Enterprise Linux 7Red Hat | |
Red Hat Enterprise Linux 8Red Hat | |
Red Hat Enterprise Linux 9Red Hat | |
Red Hat OpenShift Container Platform 4Red Hat | |
Red Hat OpenShift Container Platform 4Red Hat | |
Red Hat OpenShift Container Platform 5Red Hat |
References
- https://access.redhat.com/security/cve/CVE-2026-107565vdb-entry
- RHBZ#2547930issue-tracking
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