CVE-2022-49242 ASoC: mxs: Fix error handling in mxs_sgtl5000_probe

Medium 5.5 Published Updated

A refcount leak in the Linux kernel's mxs_sgtl5000 audio driver probe function 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-2022-49242?

CVE-2022-49242 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: mxs: Fix error handling in mxs_sgtl5000_probe

This function only calls of_node_put() in the regular path. And it will cause refcount leak in error paths. For example, when codec_np is NULL, saif_np[0] and saif_np[1] are not NULL, it will cause leaks.

of_node_put() will check if the node pointer is NULL, so we can call it directly to release the refcount of regular pointers.

Which versions are affected by CVE-2022-49242?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2022-49242?

Apply the vendor's patch.

Is CVE-2022-49242 being exploited?

There is no known exploitation of CVE-2022-49242 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as DEBIAN-CVE-2022-49242, GHSA-7wv3-wp67-hwwp, UBUNTU-CVE-2022-49242.

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