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CVE Record

CVE-2025-71163: dmaengine: idxd: fix device leaks on compat bind and unbind

In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: fix device leaks on compat bind and unbind Make sure to drop the reference taken when looking up the idxd device as part of the compat bind and unbind sysfs interface.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

CVE-2025-71163 is a Linux kernel issue in the dmaengine idxd driver. A reference taken during compat bind and unbind sysfs operations was not released, causing device leaks. Public data does not provide CVSS, CWE, confirmed impact, or active exploitation evidence.

Executive priority

Handle through normal kernel patch governance unless critical systems use affected Linux kernels with idxd enabled or a vendor advisory raises severity. There is no public evidence here of active exploitation, but kernel fixes should not be deferred indefinitely.

Technical view

The fix ensures the idxd device reference acquired during compat bind/unbind sysfs lookup is dropped. The public record lists Linux kernel versions as affected and links multiple stable kernel commits. The issue appears to be a kernel object/reference leak; exploitability, privilege requirements, and operational impact are not specified in the provided sources.

Likely exposure

Exposure is most likely on Linux systems running affected kernels with the dmaengine idxd driver present and the compat bind/unbind sysfs interface reachable. The public record does not define required privileges, configurations, or distribution package status.

Exploitation context

No source in the bundle reports active exploitation, and this CVE is not marked KEV. The available information describes a resolved kernel reference leak, not a public exploit path. Treat exposure as configuration-dependent until vendor or distribution advisories clarify impact.

Researcher notes

The provided record lacks CVSS, CWE, and detailed affected-version semantics. The affected list includes kernel versions and commit identifiers, so validate against upstream stable commits and downstream vendor packages. Avoid assuming denial-of-service or privilege escalation without additional vendor evidence.

Mitigation direction

  • Check Linux distribution and appliance vendor advisories for CVE-2025-71163 guidance.
  • Apply kernel updates that include the referenced stable fixes.
  • Prioritize systems using or enabling the dmaengine idxd driver.
  • For Siemens products, review SSA-019113 for product-specific status.
  • If no update is available, follow vendor-recommended compensating guidance.

Validation and detection

  • Inventory running Linux kernel versions across servers, appliances, and images.
  • Confirm whether installed kernels include the referenced stable commits.
  • Check whether the idxd driver is built, loaded, or used.
  • Review vendor security notices for fixed package versions.
  • Document systems deferred from patching and the reason.
Prepared
Confidence
medium
Sources
9

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-2025-71163 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
8Source 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
LinuxLinux6e7f3ee97bbe2c7d7a53b7dbd7a08a579e03c8c9, 6e7f3ee97bbe2c7d7a53b7dbd7a08a579e03c8c9, 6e7f3ee97bbe2c7d7a53b7dbd7a08a579e03c8c9, 6e7f3ee97bbe2c7d7a53b7dbd7a08a579e03c8c9, 6e7f3ee97bbe2c7d7a53b7dbd7a08a579e03c8c9, 6e7f3ee97bbe2c7d7a53b7dbd7a08a579e03c8c9unaffected
LinuxLinux5.15, 0, 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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