CVE-2026-98179 drm/amdgpu: fix rmmio iounmap skipped on device removal
A memory leak in the amdgpu driver occurs during device removal, potentially leading to resource exhaustion and denial of service.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-98179?
CVE-2026-98179 is a memory corruption vulnerability in Linux, published on 6 Oct 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/amdgpu: fix rmmio iounmap skipped on device removal
amdgpu_pci_remove() calls drm_dev_unplug() before fini_sw(), so drm_dev_enter() is already false there and the iounmap() guarded by it is skipped. This .remove path runs on both hot-unplug and plain rmmod, so the register BAR ioremap mapping leaks one instance per unload.
Unmap rmmio unconditionally (guard only on non-NULL) and drop the now unused idx.
(cherry picked from commit dd6f86a97260e5207d3329ad03aa89fdad61b1e6)
Which versions are affected by CVE-2026-98179?
How do I fix CVE-2026-98179?
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-2026-98179 being exploited?
There is no known exploitation of CVE-2026-98179 in the wild and no public exploit code.
Sources
Also known as AZL-106428, BELL-CVE-2026-98179, DEBIAN-CVE-2026-98179, GHSA-7xg7-f7wr-mr4q, UBUNTU-CVE-2026-98179.