GSD-2021-1000892 drm: Fix use-after-free read in drm_getunique()
A use-after-free vulnerability in the Linux Kernel DRM subsystem allows local attackers to potentially execute code or escalate privileges.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2021-1000892?
GSD-2021-1000892 is an use after free vulnerability in Kernel, published on 30 Jun 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
drm: Fix use-after-free read in drm_getunique()
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.4.126 by commit b246b4c70c1250e7814f409b243000f9c0bf79a3. For more details please see the references link.
Which versions are affected by GSD-2021-1000892?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000892?
No fix has been published for GSD-2021-1000892 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is GSD-2021-1000892 being exploited?
There is no known exploitation of GSD-2021-1000892 in the wild and no public exploit code.