CVE-2026-71224
Gfs2-utils: gfs2-utils: stack overflow via alloca(i_height) in metadata walk
- State
- Published
- Severity
- 4.7 Medium
- Published
- Sep 3, 2026
- Updated
- Sep 3, 2026
- Reserved
- Aug 5, 2026
Description
A stack overflow vulnerability was found in gfs2-utils. The metadata walk code in metawalk.c uses alloca() with an untrusted inode height value from on-disk metadata without bounds validation, causing stack exhaustion and a denial of service when processing crafted GFS2 filesystem images.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 4.7 Medium | CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H | redhat |
Weaknesses
- CWE-770 Allocation of Resources Without Limits or Throttling
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-2026-71224vdb-entry
- RHBZ#2511397issue-tracking
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