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CVE-2025-38401

mtk-sd: Prevent memory corruption from DMA map failure

EPSS 0.2%
In the Linux kernel, the following vulnerability has been resolved: mtk-sd: Prevent memory corruption from DMA map failure If msdc_prepare_data() fails to map the DMA region, the request is not prepared for data receiving, but msdc_start_data() proceeds the DMA with previous setting. Since this will lead a memory corruption, we have to stop the request operation soon after the msdc_prepare_data() fails to prepare it.
Affected products
Linux · Linux

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References
https://git.kernel.org/stable/c/3419bc6a7b65cbbb91417bb9970208478e034c79https://git.kernel.org/stable/c/48bf4f3dfcdab02b22581d8e350a2d23130b72c0https://git.kernel.org/stable/c/5ac9e9e2e9cd6247d8c2d99780eae4556049e1cchttps://git.kernel.org/stable/c/61cdd663564674ea21ceb50aa9d3697cbe9e45f9https://git.kernel.org/stable/c/63e8953f16acdcb23e2d4dd8a566d3c34df3e200https://git.kernel.org/stable/c/a5f5f67b284d81776d4a3eb1f8607e4b7f91f11chttps://git.kernel.org/stable/c/d54771571f74a82c59830a32e76af78a8e57ac69https://git.kernel.org/stable/c/f5de469990f19569627ea0dd56536ff5a13beaa3https://lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlhttps://lists.debian.org/debian-lts-announce/2025/10/msg00008.html