CVE-2022-50760 drm/amdgpu: Fix PCI device refcount leak in amdgpu_atrm_get_bios()
A missing reference count decrement in the AMD GPU driver can lead to a memory leak, potentially causing 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-2022-50760?
CVE-2022-50760 is a denial of service vulnerability in Linux, published on 24 Dec 2025. 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 PCI device refcount leak in amdgpu_atrm_get_bios()
As comment of pci_get_class() says, it returns a pci_device with its refcount increased and decreased the refcount for the input parameter @from if it is not NULL.
If we break the loop in amdgpu_atrm_get_bios() with 'pdev' not NULL, we need to call pci_dev_put() to decrease the refcount. Add the missing pci_dev_put() to avoid refcount leak.
Which versions are affected by CVE-2022-50760?
How do I fix CVE-2022-50760?
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-2022-50760 being exploited?
There is no known exploitation of CVE-2022-50760 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2022-50760, GHSA-hhxv-6gp3-rvmc, UBUNTU-CVE-2022-50760.