CVE-2024-42088

ASoC: mediatek: mt8195: Add platform entry for ETDM1_OUT_BE dai link

Description

In the Linux kernel, the following vulnerability has been resolved: ASoC: mediatek: mt8195: Add platform entry for ETDM1_OUT_BE dai link Commit e70b8dd26711 ("ASoC: mediatek: mt8195: Remove afe-dai component and rework codec link") removed the codec entry for the ETDM1_OUT_BE dai link entirely instead of replacing it with COMP_EMPTY(). This worked by accident as the remaining COMP_EMPTY() platform entry became the codec entry, and the platform entry became completely empty, effectively the same as COMP_DUMMY() since snd_soc_fill_dummy_dai() doesn't do anything for platform entries. This causes a KASAN out-of-bounds warning in mtk_soundcard_common_probe() in sound/soc/mediatek/common/mtk-soundcard-driver.c: for_each_card_prelinks(card, i, dai_link) { if (adsp_node && !strncmp(dai_link->name, "AFE_SOF", strlen("AFE_SOF"))) dai_link->platforms->of_node = adsp_node; else if (!dai_link->platforms->name && !dai_link->platforms->of_node) dai_link->platforms->of_node = platform_node; } where the code expects the platforms array to have space for at least one entry. Add an COMP_EMPTY() entry so that dai_link->platforms has space.

N/A

CVSS

Severity:

EPSS 0.10%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/42b9ab7a4d7e6c5efd71847541e4fcc213585aad
https://git.kernel.org/stable/c/282a4482e198e03781c152c88aac8aa382ef9a55

Frequently Asked Questions

What is the severity of CVE-2024-42088?: CVE-2024-42088 has not yet been assigned a CVSS score.
How to fix CVE-2024-42088?: To fix CVE-2024-42088, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-42088 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2024-42088 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-42088?: CVE-2024-42088 affects Linux Linux, Linux Linux.

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