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

Vulnerability from cvelistv5 – Published: 2026-01-31 11:41 – Updated: 2026-01-31 11:41
VLAI?
Title
dmaengine: stm32: dmamux: fix device leak on route allocation
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: df7e762db5f6c8dbd9e480f1c9ef9851de346657 , < 1a179ac01ff3993ab97e33cc77c316ed7415cda1 (git)
Affected: df7e762db5f6c8dbd9e480f1c9ef9851de346657 , < 2fb10259d4efb4367787b5ae9c94192e8a91c648 (git)
Affected: df7e762db5f6c8dbd9e480f1c9ef9851de346657 , < 3ef52d31cce8ba816739085a61efe07b63c6cf27 (git)
Affected: df7e762db5f6c8dbd9e480f1c9ef9851de346657 , < dd6e4943889fb354efa3f700e42739da9bddb6ef (git)
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    Linux 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)
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{
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          "product": "Linux",
          "programFiles": [
            "drivers/dma/stm32/stm32-dmamux.c"
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      "descriptions": [
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          "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."
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        "dateUpdated": "2026-01-31T11:41:57.921Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "title": "dmaengine: stm32: dmamux: fix device leak on route allocation",
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    "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"
  },
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  "vulnerability-lookup:meta": {
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  }
}


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  • 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.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • 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.



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