CVE-2026-71224Gfs2-utils: gfs2-utils: stack overflow via alloca(i_height) in metadata walk
Updated under an hour ago ()
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It affects Red Hat Enterprise Linux 7. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 4.7 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-770
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- redhat
- NVD analysis
- Analyzed
- Record last updated
- Sep 3, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Red Hat Red Hat Enterprise Linux 7 redhat:enterprise_linux | 7 | CNA record |
redhat enterprise_linux redhat:enterprise_linux | 7.0; 8.0; 9.0 | NVD |
References
- https://access.redhat.com/security/cve/CVE-2026-71224vdb-entry, x-refsource-redhat, vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2511397issue-tracking, x-refsource-redhat, vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.