Vulnerability-Lookup

FKIE_CVE-2025-71186

Vulnerability from fkie_nvd - Published: 2026-01-31 12:16 - Updated: 2026-01-31 12:16

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: dmaengine: stm32: dmamux: fix device leak on route allocation Make sure to drop the reference taken when looking up the DMA mux platform device during route allocation. Note that holding a reference to a device does not prevent its driver data from going away so there is no point in keeping the reference.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/1a179ac01ff3993ab97e33cc77c316ed7415cda1
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/2fb10259d4efb4367787b5ae9c94192e8a91c648
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3ef52d31cce8ba816739085a61efe07b63c6cf27
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/dd6e4943889fb354efa3f700e42739da9bddb6ef

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: stm32: dmamux: fix device leak on route allocation\n\nMake sure to drop the reference taken when looking up the DMA mux\nplatform device during route allocation.\n\nNote that holding a reference to a device does not prevent its driver\ndata from going away so there is no point in keeping the reference."
    }
  ],
  "id": "CVE-2025-71186",
  "lastModified": "2026-01-31T12:16:03.873",
  "metrics": {},
  "published": "2026-01-31T12:16:03.873",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1a179ac01ff3993ab97e33cc77c316ed7415cda1"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2fb10259d4efb4367787b5ae9c94192e8a91c648"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3ef52d31cce8ba816739085a61efe07b63c6cf27"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/dd6e4943889fb354efa3f700e42739da9bddb6ef"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}

CVE-2025-71186 (GCVE-0-2025-71186)

Vulnerability from cvelistv5 – Published: 2026-01-31 11:41 – Updated: 2026-01-31 11:41

Title

dmaengine: stm32: dmamux: fix device leak on route allocation

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/1a179ac01ff3993ab…
	https://git.kernel.org/stable/c/2fb10259d4efb4367…
	https://git.kernel.org/stable/c/3ef52d31cce8ba816…
	https://git.kernel.org/stable/c/dd6e4943889fb354e…

Impacted products

Vendor

Product

Version

Linux

Affected: df7e762db5f6c8dbd9e480f1c9ef9851de346657 , < 1a179ac01ff3993ab97e33cc77c316ed7415cda1 (git)
Affected: df7e762db5f6c8dbd9e480f1c9ef9851de346657 , < 2fb10259d4efb4367787b5ae9c94192e8a91c648 (git)
Affected: df7e762db5f6c8dbd9e480f1c9ef9851de346657 , < 3ef52d31cce8ba816739085a61efe07b63c6cf27 (git)
Affected: df7e762db5f6c8dbd9e480f1c9ef9851de346657 , < dd6e4943889fb354efa3f700e42739da9bddb6ef (git)

Linux

Affected: 4.15
Unaffected: 0 , < 4.15 (semver)
Unaffected: 6.6.122 , ≤ 6.6.* (semver)
Unaffected: 6.12.67 , ≤ 6.12.* (semver)
Unaffected: 6.18.7 , ≤ 6.18.* (semver)
Unaffected: 6.19-rc6 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/dma/stm32/stm32-dmamux.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "1a179ac01ff3993ab97e33cc77c316ed7415cda1",
              "status": "affected",
              "version": "df7e762db5f6c8dbd9e480f1c9ef9851de346657",
              "versionType": "git"
            },
            {
              "lessThan": "2fb10259d4efb4367787b5ae9c94192e8a91c648",
              "status": "affected",
              "version": "df7e762db5f6c8dbd9e480f1c9ef9851de346657",
              "versionType": "git"
            },
            {
              "lessThan": "3ef52d31cce8ba816739085a61efe07b63c6cf27",
              "status": "affected",
              "version": "df7e762db5f6c8dbd9e480f1c9ef9851de346657",
              "versionType": "git"
            },
            {
              "lessThan": "dd6e4943889fb354efa3f700e42739da9bddb6ef",
              "status": "affected",
              "version": "df7e762db5f6c8dbd9e480f1c9ef9851de346657",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/dma/stm32/stm32-dmamux.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.15"
            },
            {
              "lessThan": "4.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.122",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.67",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19-rc6",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.122",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.67",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.7",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19-rc6",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: stm32: dmamux: fix device leak on route allocation\n\nMake sure to drop the reference taken when looking up the DMA mux\nplatform device during route allocation.\n\nNote that holding a reference to a device does not prevent its driver\ndata from going away so there is no point in keeping the reference."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-31T11:41:57.921Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/1a179ac01ff3993ab97e33cc77c316ed7415cda1"
        },
        {
          "url": "https://git.kernel.org/stable/c/2fb10259d4efb4367787b5ae9c94192e8a91c648"
        },
        {
          "url": "https://git.kernel.org/stable/c/3ef52d31cce8ba816739085a61efe07b63c6cf27"
        },
        {
          "url": "https://git.kernel.org/stable/c/dd6e4943889fb354efa3f700e42739da9bddb6ef"
        }
      ],
      "title": "dmaengine: stm32: dmamux: fix device leak on route allocation",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-71186",
    "datePublished": "2026-01-31T11:41:57.921Z",
    "dateReserved": "2026-01-31T11:36:51.187Z",
    "dateUpdated": "2026-01-31T11:41:57.921Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2025-71186

CVE-2025-71186 (GCVE-0-2025-71186)

Tags

Sightings

Nomenclature