wifi: mt76: mt7996: Clear wcid pointer in mt7996_mac_sta_deinit_link() (CVE-2026-63866) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-63866

wifi: mt76: mt7996: Clear wcid pointer in mt7996_mac_sta_deinit_link()

Answer in brief

CVE-2026-63866 records a Unknown severity vulnerability in wifi: mt76: mt7996: Clear wcid pointer in mt7996_mac_sta_deinit_link(). 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 Jul 19, 2026Updated Aug 5, 2026Source checked Aug 6, 2026First seen by HOL Aug 5, 2026Material review Aug 5, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. 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	>=dd82a9e02c054052b5899872c1f32805428f6131 <455a48685feebf2d9c1656caad77f9ba1da7b06e \|\| >=dd82a9e02c054052b5899872c1f32805428f6131 <c575459b485c47615491b1fd29f04b43fdc3da56 \|\| >=dd82a9e02c054052b5899872c1f32805428f6131 <88973240dc7c976dd320b36a9e6d925c9be083ae	455a48685feebf2d9c1656caad77f9ba1da7b06e, c575459b485c47615491b1fd29f04b43fdc3da56, 88973240dc7c976dd320b36a9e6d925c9be083ae
Linux/Linuxgeneric	6.15	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 455a48685feebf2d9c1656caad77f9ba1da7b06e if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Jul 19, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 5, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7996: Clear wcid pointer in mt7996_mac_sta_deinit_link() Clear WCID pointer removing the sta link in mt7996_mac_sta_deinit_link routine.

Quoted source text, attributed separately from HOL analysis.

Back to active CVEs

Unknown severity · Source severity not reportedCVE-2026-63866

wifi: mt76: mt7996: Clear wcid pointer in mt7996_mac_sta_deinit_link()

Answer in brief

Analysis pending evidence review

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

Published Jul 19, 2026Updated Aug 5, 2026Source checked Aug 6, 2026First seen by HOL Aug 5, 2026Material review Aug 5, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. 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	>=dd82a9e02c054052b5899872c1f32805428f6131 <455a48685feebf2d9c1656caad77f9ba1da7b06e \|\| >=dd82a9e02c054052b5899872c1f32805428f6131 <c575459b485c47615491b1fd29f04b43fdc3da56 \|\| >=dd82a9e02c054052b5899872c1f32805428f6131 <88973240dc7c976dd320b36a9e6d925c9be083ae	455a48685feebf2d9c1656caad77f9ba1da7b06e, c575459b485c47615491b1fd29f04b43fdc3da56, 88973240dc7c976dd320b36a9e6d925c9be083ae
Linux/Linuxgeneric	6.15	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 455a48685feebf2d9c1656caad77f9ba1da7b06e if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Jul 19, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 5, 2026

Sources and claim methodology

Upstream source description

Quoted source text, attributed separately from HOL analysis.

wifi: mt76: mt7996: Clear wcid pointer in mt7996_mac_sta_deinit_link()

Key facts

Why this deserves its current priority

Affected scope and exposure questions

Recommended response

Evidence timeline and material changes

Sources and claim methodology

Related CVEs

wifi: mt76: mt7996: Clear wcid pointer in mt7996_mac_sta_deinit_link()

Key facts

Why this deserves its current priority

Affected scope and exposure questions

Recommended response

Evidence timeline and material changes

Sources and claim methodology

Related CVEs