CVE-2024-42313 media: venus: fix use after free in vdec_close
A use-after-free vulnerability in the Linux kernel's Venus media driver allows attackers to potentially execute code or escalate privileges by closing the decoder device during operation.
- 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-2024-42313?
CVE-2024-42313 is a high-severity use after free vulnerability in Linux kernel, published on 17 Aug 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:
media: venus: fix use after free in vdec_close
There appears to be a possible use after free with vdec_close(). The firmware will add buffer release work to the work queue through HFI callbacks as a normal part of decoding. Randomly closing the decoder device from userspace during normal decoding can incur a read after free for inst.
Fix it by cancelling the work in vdec_close.
Weakness: CWE-416
Which versions are affected by CVE-2024-42313?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-42313?
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-2024-42313 being exploited?
There is no known exploitation of CVE-2024-42313 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-47949, AZL-48012, BELL-CVE-2024-42313, DEBIAN-CVE-2024-42313, GHSA-xmjj-hrw9-x35m, UBUNTU-CVE-2024-42313.