CVE-2025-38401

mtk-sd: Prevent memory corruption from DMA map failure

State: Published
Severity: 7.8 High
Published: Jul 25, 2025
Updated: Aug 5, 2026
Reserved: Apr 16, 2025

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.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	208489032bdd8d4a7de50f3057c175058f271956 to before 5ac9e9e2e9cd6247d8c2d99780eae4556049e1ccAffected 208489032bdd8d4a7de50f3057c175058f271956 to before d54771571f74a82c59830a32e76af78a8e57ac69Affected 208489032bdd8d4a7de50f3057c175058f271956 to before 48bf4f3dfcdab02b22581d8e350a2d23130b72c0Affected 208489032bdd8d4a7de50f3057c175058f271956 to before 63e8953f16acdcb23e2d4dd8a566d3c34df3e200Affected 208489032bdd8d4a7de50f3057c175058f271956 to before 61cdd663564674ea21ceb50aa9d3697cbe9e45f9Affected 208489032bdd8d4a7de50f3057c175058f271956 to before 3419bc6a7b65cbbb91417bb9970208478e034c79Affected 208489032bdd8d4a7de50f3057c175058f271956 to before a5f5f67b284d81776d4a3eb1f8607e4b7f91f11cAffected 208489032bdd8d4a7de50f3057c175058f271956 to before f5de469990f19569627ea0dd56536ff5a13beaa3Affected
LinuxLinux	4.2Affected before 4.2Not affected 5.4.296 through 5.4.Not affected 5.10.240 through 5.10.Not affected 5.15.187 through 5.15.Not affected 6.1.144 through 6.1.Not affected 6.6.97 through 6.6.Not affected 6.12.37 through 6.12.Not affected 6.15.6 through 6.15.*Not affected 6.16 and laterNot affected

Product

Versions

LinuxLinux

208489032bdd8d4a7de50f3057c175058f271956 to before 5ac9e9e2e9cd6247d8c2d99780eae4556049e1ccAffected
208489032bdd8d4a7de50f3057c175058f271956 to before d54771571f74a82c59830a32e76af78a8e57ac69Affected
208489032bdd8d4a7de50f3057c175058f271956 to before 48bf4f3dfcdab02b22581d8e350a2d23130b72c0Affected
208489032bdd8d4a7de50f3057c175058f271956 to before 63e8953f16acdcb23e2d4dd8a566d3c34df3e200Affected
208489032bdd8d4a7de50f3057c175058f271956 to before 61cdd663564674ea21ceb50aa9d3697cbe9e45f9Affected
208489032bdd8d4a7de50f3057c175058f271956 to before 3419bc6a7b65cbbb91417bb9970208478e034c79Affected
208489032bdd8d4a7de50f3057c175058f271956 to before a5f5f67b284d81776d4a3eb1f8607e4b7f91f11cAffected
208489032bdd8d4a7de50f3057c175058f271956 to before f5de469990f19569627ea0dd56536ff5a13beaa3Affected

LinuxLinux

4.2Affected
before 4.2Not affected
5.4.296 through 5.4.*Not affected
5.10.240 through 5.10.*Not affected
5.15.187 through 5.15.*Not affected
6.1.144 through 6.1.*Not affected
6.6.97 through 6.6.*Not affected
6.12.37 through 6.12.*Not affected
6.15.6 through 6.15.*Not affected
6.16 and laterNot affected

References

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