CVE-2026-23418 drm/xe/reg_sr: Fix leak on xa_store failure
A memory leak in the Linux kernel's xe driver error path allows attackers to exhaust system memory, potentially causing a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-23418?
CVE-2026-23418 is a medium-severity denial of service vulnerability in Linux kernel, published on 3 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
drm/xe/reg_sr: Fix leak on xa_store failure
Free the newly allocated entry when xa_store() fails to avoid a memory leak on the error path.
v2: use goto fail_free. (Bala)
(cherry picked from commit 6bc6fec71ac45f52db609af4e62bdb96b9f5fadb)
Weakness: CWE-401
Which versions are affected by CVE-2026-23418?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-23418?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-23418 being exploited?
There is no known exploitation of CVE-2026-23418 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2026-23418, DEBIAN-CVE-2026-23418, GHSA-jcxx-x6vw-f3xq, ROOT-OS-UBUNTU-2404-CVE-2026-23418, UBUNTU-CVE-2026-23418.