CVE-2026-89810 drm/amdkfd: Fix error path at svm_migrate_copy_to_ram
A bug in the AMD KFD driver's error handling path can lead to resource leaks or instability when page migration fails, potentially causing 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-2026-89810?
CVE-2026-89810 is a high-severity vulnerability in Linux, published on 16 Sep 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: Fix error path at svm_migrate_copy_to_ram
If page migration from device to sys ram fails for some reasons driver needs release and unlock allocated system pages. To do that driver should use page physical address, or pfn, then get struct page*. Current driver uses dma address(for adev) that is not correct with IOMMU enabled, or even in general.
The patch releases and unlocks allocated system pages based on where migration failed by struct page* of sys ram pages. Also dma_unmap correspodent system ram pages at error path.
Which versions are affected by CVE-2026-89810?
How do I fix CVE-2026-89810?
Apply the vendor's patch.
Is CVE-2026-89810 being exploited?
There is no known exploitation of CVE-2026-89810 in the wild and no public exploit code.
Sources
Also known as AZL-101484, BELL-CVE-2026-89810, DEBIAN-CVE-2026-89810, GHSA-xrq7-rc4j-2cmm, UBUNTU-CVE-2026-89810.