CVE-2026-71222 Gfs2-utils: gfs2-utils: heap out-of-bounds read via unchecked ea_num_ptrs in extended attribute processing
Attackers can trigger heap out-of-bounds reads in GFS2 utilities via crafted filesystem images, potentially disclosing memory or causing crashes.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-71222?
CVE-2026-71222 is a medium-severity memory corruption vulnerability in Redhat Enterprise Linux, published on 3 Sep 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-125
Which versions are affected by CVE-2026-71222?
It affects 1 product.
Products include Redhat Enterprise Linux.
How do I fix CVE-2026-71222?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-71222 being exploited?
There is no known exploitation of CVE-2026-71222 in the wild and no public exploit code.
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Sources
Also known as AZL-99903, DEBIAN-CVE-2026-71222, GHSA-2cw6-9644-c5v7, UBUNTU-CVE-2026-71222.