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Review reviewHigh

CVE-2025-38401

Linux Linux, linux kernel, debian linux

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
7.8
EPSS
0.17%
6.49% percentile
CISA KEV
Not listed
Published
2025.07.25
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.17%
Technical severityCVSS 7.8

Vulnerability overview

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 product and versions

Product
Linux Linux, linux kernel, debian linux
Affected versions
>= 208489032bdd8d4a7de50f3057c175058f271956 < 5ac9e9e2e9cd6247d8c2d99780eae4556049e1cc, >= 208489032bdd8d4a7de50f3057c175058f271956 < d54771571f74a82c59830a32e76af78a8e57ac69, >= 208489032bdd8d4a7de50f3057c175058f271956 < 48bf4f3dfcdab02b22581d8e350a2d23130b72c0, >= 208489032bdd8d4a7de50f3057c175058f271956 < 63e8953f16acdcb23e2d4dd8a566d3c34df3e200, >= 208489032bdd8d4a7de50f3057c175058f271956 < 61cdd663564674ea21ceb50aa9d3697cbe9e45f9, >= 208489032bdd8d4a7de50f3057c175058f271956 < 3419bc6a7b65cbbb91417bb9970208478e034c79, >= 208489032bdd8d4a7de50f3057c175058f271956 < a5f5f67b284d81776d4a3eb1f8607e4b7f91f11c, >= 208489032bdd8d4a7de50f3057c175058f271956 < f5de469990f19569627ea0dd56536ff5a13beaa3, >= 4.2, >= 4.2 < 5.4.296, >= 5.5 < 5.10.240, >= 5.11 < 5.15.187, >= 5.16 < 6.1.144, >= 6.2 < 6.6.97, >= 6.7 < 6.12.37, >= 6.13 < 6.15.6, 6.16, 11.0
Fixed versions
5.4.296, 5.10.240, 5.15.187, 6.1.144, 6.6.97, 6.12.37, 6.15.6

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel, debian linux and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-787