Resource exhaustion in Red Hat Enterprise Linux 7
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 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.
EPSS: 0.001 (1.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H.
Affected products
Weakness classification (CWE)
References
- secalert@redhat.com (x_refsource_REDHAT, vdb-entry)
- secalert@redhat.com (x_refsource_REDHAT, issue-tracking)
Frequently asked questions
- What is CVE-2026-71219?
- CVE-2026-71219 is a medium-severity vulnerability in Red Hat Enterprise Linux 7, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 4.7/10. Published 2026-09-03.
- How severe is CVE-2026-71219?
- Medium severity. CVSS v3 base score is 4.7 out of 10.