CVE-2026-97520 gfs2: move quota_init qc iterator increment
A code refactoring in the Linux kernel GFS2 quota initialization loop improves iterator clarity without stating a specific security impact.
- 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-2026-97520?
CVE-2026-97520 is a high-severity vulnerability in Linux, published on 24 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
In the Linux kernel, the following vulnerability has been resolved:
gfs2: move quota_init qc iterator increment
Move qc++ from the loop body into the for-loop increment expression in gfs2_quota_init().
This keeps iterator progression explicit and avoids mixing pointer advance with duplicate-slot handling in the loop body.
Which versions are affected by CVE-2026-97520?
How do I fix CVE-2026-97520?
Apply the vendor's patch.
Is CVE-2026-97520 being exploited?
There is no known exploitation of CVE-2026-97520 in the wild and no public exploit code.
Sources
Also known as AZL-103805, BELL-CVE-2026-97520, DEBIAN-CVE-2026-97520, GHSA-wwp5-47mj-chgr, UBUNTU-CVE-2026-97520.