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

Vulnerability from cvelistv5 – Published: 2026-01-31 11:41 – Updated: 2026-07-14 12:44
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
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: df7e762db5f6c8dbd9e480f1c9ef9851de346657 , < 3b42020e6790a5e19b36c187ed5b488a5716f97f (git)
Affected: df7e762db5f6c8dbd9e480f1c9ef9851de346657 , < 6393da54dcb3488c080a183c4182ddec71ba8d7f (git)
Affected: df7e762db5f6c8dbd9e480f1c9ef9851de346657 , < 1dda2a32303df0091896b01a9d09070d61fa344c (git)
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: 5.10.249 , ≤ 5.10.* (semver)
Unaffected: 5.15.199 , ≤ 5.15.* (semver)
Unaffected: 6.1.162 , ≤ 6.1.* (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 , ≤ * (original_commit_for_fix)
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Siemens RUGGEDCOM RST2428P Affected: 0 , < V4.0 (custom)
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Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.6 , < * (custom)
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Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP Affected: V3.1.6 , < * (custom)
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Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.6 , < * (custom)
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    "redhat_vex": {
      "aggregate_severity": "None",
      "current_release_date": "2026-06-28T11:43:02+00:00",
      "cve": "CVE-2025-71186",
      "id": "CVE-2025-71186",
      "initial_release_date": "2025-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: dmaengine: stm32: dmamux: fix device leak on route allocation",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-71186.json",
      "version": "3"
    }
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.