Vulnerability-Lookup

FKIE_CVE-2025-38401

Vulnerability from fkie_nvd - Published: 2025-07-25 13:15 - Updated: 2026-07-30 06:23

Severity

7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

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.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3419bc6a7b65cbbb91417bb9970208478e034c79	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/48bf4f3dfcdab02b22581d8e350a2d23130b72c0	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/5ac9e9e2e9cd6247d8c2d99780eae4556049e1cc	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/61cdd663564674ea21ceb50aa9d3697cbe9e45f9	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/63e8953f16acdcb23e2d4dd8a566d3c34df3e200	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/a5f5f67b284d81776d4a3eb1f8607e4b7f91f11c	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d54771571f74a82c59830a32e76af78a8e57ac69	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f5de469990f19569627ea0dd56536ff5a13beaa3	Patch
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html	Third Party Advisory

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	6.16
linux	linux_kernel	6.16
linux	linux_kernel	6.16
linux	linux_kernel	6.16
debian	debian_linux	11.0

JSON

To clipboard

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          "product": "Linux",
          "programFiles": [
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmtk-sd: Prevent memory corruption from DMA map failure\n\nIf msdc_prepare_data() fails to map the DMA region, the request is\nnot prepared for data receiving, but msdc_start_data() proceeds\nthe DMA with previous setting.\nSince this will lead a memory corruption, we have to stop the\nrequest operation soon after the msdc_prepare_data() fails to\nprepare it."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mtk-sd: Prevenir la corrupci\u00f3n de memoria por un fallo en el mapeo de DMA. Si msdc_prepare_data() no logra mapear la regi\u00f3n DMA, la solicitud no se prepara para la recepci\u00f3n de datos, pero msdc_start_data() contin\u00faa el DMA con la configuraci\u00f3n anterior. Dado que esto provocar\u00e1 una corrupci\u00f3n de memoria, debemos detener la solicitud poco despu\u00e9s de que msdc_prepare_data() no la prepare."
    }
  ],
  "id": "CVE-2025-38401",
  "lastModified": "2026-07-30T06:23:12.390",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
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        "impactScore": 5.9,
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        "type": "Secondary"
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      {
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          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2025-07-25T13:15:29.660",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      "url": "https://git.kernel.org/stable/c/3419bc6a7b65cbbb91417bb9970208478e034c79"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      "tags": [
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    },
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    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2025-38401 (GCVE-0-2025-38401)

Vulnerability from cvelistv5 – Published: 2025-07-25 12:53 – Updated: 2026-08-05 12:01

Title

mtk-sd: Prevent memory corruption from DMA map failure

Summary

Severity

7.8 (High)


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

Assigner

Linux mitre root Scorecard

References

10 references

URL	Tags
https://git.kernel.org/stable/c/5ac9e9e2e9cd6247d…
https://git.kernel.org/stable/c/d54771571f74a82c5…
https://git.kernel.org/stable/c/48bf4f3dfcdab02b2…
https://git.kernel.org/stable/c/63e8953f16acdcb23…
https://git.kernel.org/stable/c/61cdd663564674ea2…
https://git.kernel.org/stable/c/3419bc6a7b65cbbb9…
https://git.kernel.org/stable/c/a5f5f67b284d81776…
https://git.kernel.org/stable/c/f5de469990f195696…
https://lists.debian.org/debian-lts-announce/2025…
https://lists.debian.org/debian-lts-announce/2025…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 208489032bdd8d4a7de50f3057c175058f271956 , < 5ac9e9e2e9cd6247d8c2d99780eae4556049e1cc (git) Affected: 208489032bdd8d4a7de50f3057c175058f271956 , < d54771571f74a82c59830a32e76af78a8e57ac69 (git) Affected: 208489032bdd8d4a7de50f3057c175058f271956 , < 48bf4f3dfcdab02b22581d8e350a2d23130b72c0 (git) Affected: 208489032bdd8d4a7de50f3057c175058f271956 , < 63e8953f16acdcb23e2d4dd8a566d3c34df3e200 (git) Affected: 208489032bdd8d4a7de50f3057c175058f271956 , < 61cdd663564674ea21ceb50aa9d3697cbe9e45f9 (git) Affected: 208489032bdd8d4a7de50f3057c175058f271956 , < 3419bc6a7b65cbbb91417bb9970208478e034c79 (git) Affected: 208489032bdd8d4a7de50f3057c175058f271956 , < a5f5f67b284d81776d4a3eb1f8607e4b7f91f11c (git) Affected: 208489032bdd8d4a7de50f3057c175058f271956 , < f5de469990f19569627ea0dd56536ff5a13beaa3 (git)
Linux	Linux	Affected: 4.2 Unaffected: 0 , < 4.2 (semver) Unaffected: 5.4.296 , ≤ 5.4.* (semver) Unaffected: 5.10.240 , ≤ 5.10.* (semver) Unaffected: 5.15.187 , ≤ 5.15.* (semver) Unaffected: 6.1.144 , ≤ 6.1.* (semver) Unaffected: 6.6.97 , ≤ 6.6.* (semver) Unaffected: 6.12.37 , ≤ 6.12.* (semver) Unaffected: 6.15.6 , ≤ 6.15.* (semver) Unaffected: 6.16 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T17:37:35.519Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
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          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
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              "status": "affected",
              "version": "208489032bdd8d4a7de50f3057c175058f271956",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/mmc/host/mtk-sd.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.2"
            },
            {
              "lessThan": "4.2",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.296",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.240",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.187",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.144",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.97",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.37",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.15.*",
              "status": "unaffected",
              "version": "6.15.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.16",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.296",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.240",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.187",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.144",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.97",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.37",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15.6",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmtk-sd: Prevent memory corruption from DMA map failure\n\nIf msdc_prepare_data() fails to map the DMA region, the request is\nnot prepared for data receiving, but msdc_start_data() proceeds\nthe DMA with previous setting.\nSince this will lead a memory corruption, we have to stop the\nrequest operation soon after the msdc_prepare_data() fails to\nprepare it."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The vulnerable path is the MMC/SD block request path reached through ordinary local file or block-device I/O on the eMMC/SD device; no network or remote peer is involved.\nAC:L - The only precondition is a dma_map_sg() failure, which a local attacker directly induces by exhausting swiotlb bounce buffers, a restricted-dma-pool, or M4U IOVA space with concurrent large O_DIRECT I/O and memory pressure, then reliably lands the corrupt transfer since every subsequent request re-arms the stale BD ring.\nPR:L - Any unprivileged local user can submit MMC requests simply by reading/writing files on the eMMC- or SD-backed filesystem and can generate the DMA-resource pressure needed; no capability or root check exists anywhere on the path.\nUI:N - The corrupt DMA is started by the driver itself as soon as a mapping failure occurs during normal I/O; no victim action is required.\nS:U - The corruption is device DMA into kernel memory managed by the same kernel security authority; no VM, sandbox, or IOMMU translation boundary is crossed.\nC:H - On write transfers the controller streams the contents of stale, already-unmapped and potentially reallocated kernel pages out to the SD/eMMC medium, and the resulting corruption is leverageable for broader kernel memory disclosure.\nI:H - On read transfers the hardware writes attacker-supplied card data into freed/reused kernel memory at stale physical addresses, an uncontrolled kernel write primitive suitable for control-flow hijacking \u2014 the commit itself states this \"will lead a memory corruption\".\nA:H - The mismatched descriptor state triggers DMA protect/checksum errors and data timeouts, and DMA into reallocated kernel memory readily produces oopses and panics."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:01:37.420Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/5ac9e9e2e9cd6247d8c2d99780eae4556049e1cc"
        },
        {
          "url": "https://git.kernel.org/stable/c/d54771571f74a82c59830a32e76af78a8e57ac69"
        },
        {
          "url": "https://git.kernel.org/stable/c/48bf4f3dfcdab02b22581d8e350a2d23130b72c0"
        },
        {
          "url": "https://git.kernel.org/stable/c/63e8953f16acdcb23e2d4dd8a566d3c34df3e200"
        },
        {
          "url": "https://git.kernel.org/stable/c/61cdd663564674ea21ceb50aa9d3697cbe9e45f9"
        },
        {
          "url": "https://git.kernel.org/stable/c/3419bc6a7b65cbbb91417bb9970208478e034c79"
        },
        {
          "url": "https://git.kernel.org/stable/c/a5f5f67b284d81776d4a3eb1f8607e4b7f91f11c"
        },
        {
          "url": "https://git.kernel.org/stable/c/f5de469990f19569627ea0dd56536ff5a13beaa3"
        }
      ],
      "title": "mtk-sd: Prevent memory corruption from DMA map failure",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38401",
    "datePublished": "2025-07-25T12:53:44.961Z",
    "dateReserved": "2025-04-16T04:51:24.012Z",
    "dateUpdated": "2026-08-05T12:01:37.420Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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FKIE_CVE-2025-38401

CVE-2025-38401 (GCVE-0-2025-38401)

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