CVE-2026-71222: Gfs2-utils: gfs2-utils: heap out-of-bounds read via unchecked ea_num_ptrs in extended attribute processing

Severity: medium (CVSS 6.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-03 · updated 2026-09-22
Weakness: CWE-125

Description

A heap out-of-bounds read vulnerability was found in gfs2-utils. The ea_num_ptrs field from on-disk extended attribute metadata is consumed without bounds validation, causing a heap buffer over-read that may disclose sensitive memory contents or cause a crash when processing crafted GFS2 filesystem images.

Affected products

Red Hat Enterprise Linux: 7.0, 8.0, 9.0

References

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

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