Heap Out-of-Bounds Read Vulnerability in gfs2-utils
CVE-2026-71222

5.3MEDIUM

Key Information:

Vendor

Red Hat
Status
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9
Vendor
CVE Published:
3 September 2026

What is CVE-2026-71222?

A heap out-of-bounds read vulnerability exists in gfs2-utils, where the ea_num_ptrs field from the on-disk extended attribute metadata is processed without adequate bounds validation. This flaw can lead to a heap buffer over-read, potentially disclosing sensitive memory contents or causing unexpected crashes when handling maliciously crafted GFS2 filesystem images.

References

https://access.redhat.com/security/cve/CVE-2026-71222
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2511399
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Local
Attack Complexity:
High
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Red Hat would like to thank Tristan Madani (Talence Security) for reporting this issue.
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