CVE-2024-46820 drm/amdgpu/vcn: remove irq disabling in vcn 5 suspend
A logic error in the AMD GPU VCN driver causes kernel warnings during suspend, potentially leading to system instability or 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-2024-46820?
CVE-2024-46820 is a high-severity denial of service vulnerability in Linux kernel, published on 27 Sep 2024. 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/vcn: remove irq disabling in vcn 5 suspend
We do not directly enable/disable VCN IRQ in vcn 5.0.0. And we do not handle the IRQ state as well. So the calls to disable IRQ and set state are removed. This effectively gets rid of the warining of "WARN_ON(!amdgpu_irq_enabled(adev, src, type))" in amdgpu_irq_put().
Which versions are affected by CVE-2024-46820?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-46820?
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-2024-46820 being exploited?
There is no known exploitation of CVE-2024-46820 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-46820, DEBIAN-CVE-2024-46820, GHSA-9h7h-jp4j-h743, ROOT-OS-UBUNTU-2204-CVE-2024-46820, ROOT-OS-UBUNTU-2404-CVE-2024-46820, UBUNTU-CVE-2024-46820.