CVE ID:	CVE-2024-35842
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`.
Test IDs:	None available
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2024-35842 https://git.kernel.org/stable/c/b1d3db6740d0997ffc6e5a0d96ef7cbd62b35fdd https://git.kernel.org/stable/c/b1d3db6740d0997ffc6e5a0d96ef7cbd62b35fdd https://git.kernel.org/stable/c/cad471227a37c0c7c080bfc9ed01b53750e82afe https://git.kernel.org/stable/c/cad471227a37c0c7c080bfc9ed01b53750e82afe https://git.kernel.org/stable/c/cde6ca5872bf67744dffa875a7cb521ab007b7ef https://git.kernel.org/stable/c/cde6ca5872bf67744dffa875a7cb521ab007b7ef https://git.kernel.org/stable/c/e3b3ec967a7d93b9010a5af9a2394c8b5c8f31ed https://git.kernel.org/stable/c/e3b3ec967a7d93b9010a5af9a2394c8b5c8f31ed