CVE-2024-35842: linux kernel Null Dereference — Fix

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`.

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CVSS v3.1 Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-476 CWE-476

Affected Products

Vendor	Product	Versions
linux	linux_kernel	6.0 — 6.1.75
linux	linux_kernel	6.2 — 6.6.14
linux	linux_kernel	6.7 — 6.7.2

References

Advisories & Patches

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

Frequently Asked Questions

What is CVE-2024-35842? +

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`. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-35842? +

CVE-2024-35842 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-35842? +

CVE-2024-35842 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-35842? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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