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CVE Record

CVE-2026-23081: net: phy: intel-xway: fix OF node refcount leakage

In the Linux kernel, the following vulnerability has been resolved: net: phy: intel-xway: fix OF node refcount leakage Automated review spotted am OF node reference count leakage when checking if the 'leds' child node exists. Call of_put_node() to correctly maintain the refcount.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

This Linux kernel issue is a reference-count leak in the Intel XWAY PHY driver when checking for a Device Tree 'leds' child node. The provided sources do not describe data theft, privilege escalation, denial of service impact, or active exploitation. Treat it as a kernel maintenance item unless your fleet uses the affected driver and versions.

Executive priority

Routine patch-management priority unless affected network or embedded platforms are confirmed. There is not enough source evidence to justify emergency response, but kernel fixes should be included in normal maintenance windows.

Technical view

The bug is in net/phy/intel-xway handling of an OF node reference. Automated review found that a reference acquired while checking the 'leds' child node was not released. The resolved change calls of_put_node() to maintain the node reference count correctly. The source bundle lists Linux kernel versions including 6.13 through fixed stable releases as affected.

Likely exposure

Exposure appears limited to Linux systems running affected kernel versions with the intel-xway PHY driver and relevant Device Tree configuration. General Linux servers without this hardware or driver path are less likely to be exposed. The provided data does not identify distributions, appliances, or downstream vendor packages.

Exploitation context

CISA KEV status is false in the source bundle, and no cited source states active exploitation. The sources do not provide a CVSS score, CWE, exploitability analysis, or practical attack scenario. Impact should be assessed through vendor kernel advisories and local hardware inventory.

Researcher notes

The record is sparse: no CVSS, CWE, distribution mapping, or exploit detail is provided. Analysis should focus on confirming affected kernel trees, hardware applicability, and whether downstream vendors backported the of_put_node() fix under different package versions.

Mitigation direction

  • Update to a kernel build containing the referenced stable fixes.
  • Check your Linux distribution or appliance vendor advisory for packaged fixes.
  • Prioritize affected embedded or network devices using Intel XWAY PHY hardware.
  • If no vendor fix is available, track vendor guidance and maintenance kernel updates.

Validation and detection

  • Inventory systems running affected Linux kernel versions.
  • Confirm whether the intel-xway PHY driver is built, loaded, or used.
  • Review Device Tree usage for the relevant PHY LED child node path.
  • Map kernel package versions to the referenced stable commits or vendor backports.
Prepared
Confidence
medium
Sources
4

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

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CVE-2026-23081 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
0ADP providers
3Source 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.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux1758af47b98c17da464cb45f476875150955dd48, 1758af47b98c17da464cb45f476875150955dd48unaffected
LinuxLinux6.13, 0, 6.18.8, 6.19affected
Weakness

CWE details

No CWE listed

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