CVE-2026-46197 drm/amdkfd: validate SVM ioctl nattr against buffer size
A missing bounds check in the AMD KFD driver allows out-of-bounds memory access, potentially leading to code execution or privilege escalation.
- 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-2026-46197?
CVE-2026-46197 is a high-severity memory corruption vulnerability in Linux kernel, published on 28 May 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/amdkfd: validate SVM ioctl nattr against buffer size
Validate nattr field against the buffer size, preventing out-of-bounds buffer access via user-controlled attribute count.
(cherry picked from commit 5eca8bfdfa456c3304ca77523718fe24254c172f)
Which versions are affected by CVE-2026-46197?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2026-46197?
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-2026-46197 being exploited?
There is no known exploitation of CVE-2026-46197 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-88827, BELL-CVE-2026-46197, DEBIAN-CVE-2026-46197, GHSA-38pr-68p2-9hqw, ROOT-OS-DEBIAN-11-CVE-2026-46197, ROOT-OS-DEBIAN-12-CVE-2026-46197 and 3 more.