PCI/pwrctrl: tc9563: Fix parsing the integrated Ethernet MAC Endpoint node (CVE-2026-93265) | HOL Guard CVE

High · CVSS 7.7CVE-2026-93265

PCI/pwrctrl: tc9563: Fix parsing the integrated Ethernet MAC Endpoint node

Answer in brief

CVE-2026-93265 records a High severity (CVSS 7.7) vulnerability in PCI/pwrctrl: tc9563: Fix parsing the integrated Ethernet MAC Endpoint node. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 24, 2026Updated Sep 25, 2026Source checked Sep 25, 2026First seen by HOL Sep 25, 2026Material review Sep 25, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 7.7
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

CVSS is 7.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=4c9c7be47310c1dbd7b6d37d45986123f5b133b4 <972c771674e88a43c8310c459ea30f0f0d0c168f \|\| >=4c9c7be47310c1dbd7b6d37d45986123f5b133b4 <6e5e6c2194b2acbded5b12ed80590d215b786d29	972c771674e88a43c8310c459ea30f0f0d0c168f, 6e5e6c2194b2acbded5b12ed80590d215b786d29
Linux/Linuxgeneric	6.19	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 972c771674e88a43c8310c459ea30f0f0d0c168f if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 24, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 25, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 25, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: PCI/pwrctrl: tc9563: Fix parsing the integrated Ethernet MAC Endpoint node DSP3 has an integrated Ethernet MAC Endpoint which has its own set of config registers for configuring settings such as ASPM. The Endpoint device has two physical functions and those two functions share the same settings. Parse the Endpoint node under DSP3 instead of parsing both functions. The existing parsing logic also has one OOB issue as parsing both functions will result in accessing past the tc9563_pwrctrl->cfg array.

Quoted source text, attributed separately from HOL analysis.