CVE catalog
CVE-2026-71219
A stack overflow vulnerability was found in gfs2-utils. The hash table traversal code in metawalk.c uses alloca() with an exponentially-derived size from the untrusted on-disk di_depth field without b
- Severity
- Medium · CVSS 4.7
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.11% · Oct 25, 2026
A stack overflow vulnerability was found in gfs2-utils. The hash table traversal code in metawalk.c uses alloca() with an exponentially-derived size from the untrusted on-disk di_depth field without bounds validation. A crafted GFS2 filesystem image with a large di_depth value causes stack exhaustion and a denial of service when processed by fsck.gfs2, gfs2_edit, or savemeta.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | gfs2-utils | sid | 3.6.1-3 | fixed |
| Debian | gfs2-utils | forky | 3.6.1-3 | fixed |
| Debian | gfs2-utils | trixie | 3.6.1-1 | vulnerable |
| Debian | gfs2-utils | bookworm | 3.5.0-2 | vulnerable |
| Cpe | enterprise_linux | Not reported | Not reported | unknown |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | gfs2-utils | source | sid | 3.6.1-2 | not yet assigned | Not reported | [1146712] |
| Debian | gfs2-utils | source | forky | 3.6.1-2 | not yet assigned | Not reported | [1146712] |
| Debian | gfs2-utils | source | trixie | (unfixed) | not yet assigned | Not reported | [1146712] |
| Debian | gfs2-utils | source | bookworm | (unfixed) | not yet assigned | Not reported | [1146712] |
Notes
[trixie] gfs2-utils: Minor issue [bookworm] gfs2-utils: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [gfs2-utils]Affected
Details (2)
3.5.0-2· amd64 · bookwormAffected
nvd · gfs2-utils · debian · bookworm; nvd · gfs2-utils · debian · 12
3.5.0-2· arm64 · bookwormAffected
nvd · gfs2-utils · debian · bookworm; nvd · gfs2-utils · debian · 12
[Debian 13 (Trixie)]
- [gfs2-utils]Affected
Details (2)
3.6.1-1· amd64 · trixieAffected
nvd · gfs2-utils · debian · 13
3.6.1-1· arm64 · trixieAffected
nvd · gfs2-utils · debian · 13
Observed:
References
- [https://nvd.nist.gov/vuln/detail/CVE-2026-71219]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-71219]
- [https://security-tracker.debian.org/tracker/CVE-2026-71219]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-71219.json]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]