CVE-2025-38401
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.17%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.17% probability · 7th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- linux/linux kernel · debian/debian linux
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/3419bc6a7b65cbbb91417bb9970208478e034c79Patch
- https://git.kernel.org/stable/c/48bf4f3dfcdab02b22581d8e350a2d23130b72c0Patch
- https://git.kernel.org/stable/c/5ac9e9e2e9cd6247d8c2d99780eae4556049e1ccPatch
- https://git.kernel.org/stable/c/61cdd663564674ea21ceb50aa9d3697cbe9e45f9Patch
- https://git.kernel.org/stable/c/63e8953f16acdcb23e2d4dd8a566d3c34df3e200Patch
- https://git.kernel.org/stable/c/a5f5f67b284d81776d4a3eb1f8607e4b7f91f11cPatch
- https://git.kernel.org/stable/c/d54771571f74a82c59830a32e76af78a8e57ac69Patch
- https://git.kernel.org/stable/c/f5de469990f19569627ea0dd56536ff5a13beaa3Patch
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.