cve-2024-42088
Vulnerability from cvelistv5
Published
2024-07-29 16:26
Modified
2024-12-19 09:12
Severity ?
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/282a4482e198e03781c152c88aac8aa382ef9a55
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/42b9ab7a4d7e6c5efd71847541e4fcc213585aad
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/282a4482e198e03781c152c88aac8aa382ef9a55
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/42b9ab7a4d7e6c5efd71847541e4fcc213585aad
Impacted products
Vendor Product Version
Linux Linux Version: e70b8dd26711704b1ff1f1b4eb3d048ba69e29da
Version: e70b8dd26711704b1ff1f1b4eb3d048ba69e29da
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   Linux Linux Version: 6.8
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