CVE-2026-71221
Gfs2-utils: gfs2-utils: stack out-of-bounds write via unchecked height in savemeta
- State
- Published
- Severity
- 7.0 High
- Published
- Sep 3, 2026
- Updated
- Sep 3, 2026
- Reserved
- Aug 5, 2026
Description
A stack out-of-bounds write vulnerability was found in gfs2-utils. In savemeta, the height value from on-disk inode metadata is used as a loop bound without bounds checking, causing a stack buffer overflow that may lead to arbitrary code execution when processing crafted GFS2 filesystem images.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.0 High | CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H | redhat |
Weaknesses
- CWE-787 Out-of-bounds Write
Affected Products
| Product | Versions |
|---|---|
Red Hat Enterprise Linux 7Red Hat | |
Red Hat Enterprise Linux 8Red Hat | |
Red Hat Enterprise Linux 9Red Hat |
References
- https://access.redhat.com/security/cve/CVE-2026-71221vdb-entry
- RHBZ#2511396issue-tracking
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