CVE-2022-49240 ASoC: mediatek: mt8195: Fix error handling in mt8195_mt6359_rt1019_rt5682_dev_probe
A refcount leak in the Mediatek audio driver error path can lead to resource exhaustion and 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-2022-49240?
CVE-2022-49240 is a medium-severity vulnerability in Linux kernel, published on 26 Feb 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:
ASoC: mediatek: mt8195: Fix error handling in mt8195_mt6359_rt1019_rt5682_dev_probe
The device_node pointer is returned by of_parse_phandle() with refcount incremented. We should use of_node_put() on it when done.
This function only calls of_node_put() in the regular path. And it will cause refcount leak in error path.
Which versions are affected by CVE-2022-49240?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2022-49240?
Apply the vendor's patch.
Is CVE-2022-49240 being exploited?
There is no known exploitation of CVE-2022-49240 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2022-49240, GHSA-67jw-xp2p-xpv9, UBUNTU-CVE-2022-49240.