CVE-2026-98784 drm/amdgpu/gfx6: fix firmware leak on teardown
A resource leak in the AMD GPU kernel driver allows attackers to exhaust system memory, potentially causing a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-98784?
CVE-2026-98784 is a denial of service vulnerability in Linux, published on 18 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/gfx6: fix firmware leak on teardown
The firmware requested in gfx_v6_0_init_microcode() is not released when the GFX block is torn down, leaking the firmware resources.
Add gfx_v6_0_free_microcode() and call it from gfx_v6_0_sw_fini() to release the PFP, ME, CE and RLC firmware.
(cherry picked from commit 386e81346f95ab0be5a82c5535de932e7a456924)
Which versions are affected by CVE-2026-98784?
How do I fix CVE-2026-98784?
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-2026-98784 being exploited?
There is no known exploitation of CVE-2026-98784 in the wild and no public exploit code.
Sources
Also known as AZL-109436, BELL-CVE-2026-98784, DEBIAN-CVE-2026-98784, GHSA-2ff4-rcmq-jgcc, UBUNTU-CVE-2026-98784.