CVE-2022-46394 Use after free in n/a
A non-privileged user can exploit a use-after-free in the Arm Mali GPU driver to gain elevated privileges or execute code on Android devices.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-46394?
CVE-2022-46394 is a high-severity use after free vulnerability in Arm Valhall Gpu Kernel Driver, published on 8 Mar 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
An issue was discovered in the Arm Mali GPU Kernel Driver. A non-privileged user can make improper GPU processing operations to gain access to already freed memory. This affects Valhall r39p0 through r41p0 before r42p0, and Avalon r41p0 before r42p0.
Weakness: CWE-416
Which versions are affected by CVE-2022-46394?
It affects 2 products.
Products include Arm Avalon Gpu Kernel Driver, Arm Valhall Gpu Kernel Driver.
How do I fix CVE-2022-46394?
Apply the vendor's patch.
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 CVE-2022-46394 being exploited?
There is no known exploitation of CVE-2022-46394 in the wild and no public exploit code.
Other vulnerabilities in Arm Valhall Gpu Kernel Driver
Sources
Also known as A-267360595, ASB-A-267360595, GHSA-cx94-hhxr-8q29.