CVE-2024-35842 Information

Description

In the Linux kernel the following vulnerability has been resolved:

ASoC: mediatek: sof-common: Add NULL check for normal_link string

It’s not granted that all entries of struct sof_conn_stream declare a normal_link (a non-SOF direct link) string and this is the case for SoCs that support only SOF paths (hence do not support both direct and SOF usecases).

For example in the case of MT8188 there is no normal_link string in any of the sof_conn_stream entries and there will be more drivers doing that in the future.

To avoid possible NULL pointer KPs add a NULL check for normal_link.

Reference

https://git.kernel.org/stable/c/cad471227a37c0c7c080bfc9ed01b53750e82afe https://git.kernel.org/stable/c/b1d3db6740d0997ffc6e5a0d96ef7cbd62b35fdd https://git.kernel.org/stable/c/cde6ca5872bf67744dffa875a7cb521ab007b7ef https://git.kernel.org/stable/c/e3b3ec967a7d93b9010a5af9a2394c8b5c8f31ed