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CVE Record

CVE-2025-71185: dmaengine: ti: dma-crossbar: fix device leak on am335x route allocation

In the Linux kernel, the following vulnerability has been resolved: dmaengine: ti: dma-crossbar: fix device leak on am335x route allocation Make sure to drop the reference taken when looking up the crossbar platform device during am335x route allocation.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

This is a Linux kernel issue in TI AM335x DMA routing code. A device reference may not be released during route allocation, creating a resource leak. Exposure is likely limited to systems using the affected TI AM335x dma-crossbar driver, including some embedded or industrial Linux products.

Executive priority

Treat as a targeted embedded and industrial Linux patching item, not a broad enterprise emergency. Prioritize systems using TI AM335x hardware, especially operational technology assets with long patch cycles or vendor-managed firmware.

Technical view

The fix drops a reference acquired while looking up the crossbar platform device in am335x route allocation. Sources identify Linux kernel stable fixes, but provide no CVSS score, CWE, exploitability details, or clear privilege requirements. Impact appears related to a kernel device reference leak rather than remote code execution.

Likely exposure

Likely exposure is embedded or industrial Linux systems using TI AM335x hardware and the dmaengine ti dma-crossbar driver. General-purpose Linux servers are unlikely to be exposed unless they include and use this driver. Siemens advisories are referenced, so affected product owners should review Siemens guidance.

Exploitation context

The provided sources do not show active exploitation, and the CVE is not listed as KEV. No public exploit or attack path is cited in the source bundle. Practical exploitation conditions are not documented in the provided evidence.

Researcher notes

Evidence is limited to the kernel resolution summary and stable commit references. The issue is a reference leak in am335x route allocation. Do not assume remote reachability, privilege escalation, or denial of service without additional vendor or kernel maintainer analysis.

Mitigation direction

  • Update to a Linux kernel containing the referenced stable fixes.
  • Use vendor-supplied kernel updates for appliances and embedded devices.
  • Review Siemens advisories if operating Siemens industrial products.
  • If no update is available, monitor vendor guidance for mitigations.

Validation and detection

  • Inventory Linux systems using TI AM335x hardware or related kernel drivers.
  • Check kernel version and vendor patch status against stable fix references.
  • Review Siemens advisory applicability for deployed product models.
  • Confirm remediation through vendor release notes or kernel commit inclusion.
Prepared
Confidence
medium
Sources
11

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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CVE-2025-71185 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
3Timeline events
1ADP providers
10Source links

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

siemens-SADPADP container

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux42dbdcc6bf965997c088caff2a8be7f9bf44f701, 42dbdcc6bf965997c088caff2a8be7f9bf44f701, 42dbdcc6bf965997c088caff2a8be7f9bf44f701, 42dbdcc6bf965997c088caff2a8be7f9bf44f701, 42dbdcc6bf965997c088caff2a8be7f9bf44f701, 42dbdcc6bf965997c088caff2a8be7f9bf44f701, 42dbdcc6bf965997c088caff2a8be7f9bf44f701unaffected
LinuxLinux4.4, 0, 5.10.249, 5.15.199, 6.1.162, 6.6.122, 6.12.67, 6.18.7, 6.19affected
Weakness

CWE details

No CWE listed

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