wifi: cfg80211: stop PMSR before P2P and NAN teardown (CVE-2026-90343) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-90343

wifi: cfg80211: stop PMSR before P2P and NAN teardown

Answer in brief

CVE-2026-90343 records a Unknown severity vulnerability in wifi: cfg80211: stop PMSR before P2P and NAN teardown. 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 17, 2026Updated Sep 17, 2026Source checked Sep 17, 2026First seen by HOL Sep 17, 2026Material review Sep 17, 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	>=9bb7e0f24e7e7d00daa1219b14539e2e602649b2 <7a22cbc6c6bdd3c3811b4ce13875685c520f94de \|\| >=9bb7e0f24e7e7d00daa1219b14539e2e602649b2 <db3439ad11ac5e52decdefe784c98b21c3757848 \|\| >=9bb7e0f24e7e7d00daa1219b14539e2e602649b2 <6c5fc504d0d6934132637aa3db4b9b58148eaa78	7a22cbc6c6bdd3c3811b4ce13875685c520f94de, db3439ad11ac5e52decdefe784c98b21c3757848, 6c5fc504d0d6934132637aa3db4b9b58148eaa78
Linux/Linuxgeneric	5.0	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 7a22cbc6c6bdd3c3811b4ce13875685c520f94de if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 17, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: stop PMSR before P2P and NAN teardown PMSR request teardown must abort active measurements while the wireless_dev is still present in the driver. cfg80211_leave_locked() and cfg80211_stop_pd() already do this before invoking the driver's stop callback, but cfg80211_stop_p2p_device() and cfg80211_stop_nan() do not. Those helpers are also called directly by nl80211, rfkill shutdown, and wireless_dev unregister paths. If one of these paths stops a P2P device or NAN interface with a pending request, it removes the mac80211 subinterface from the driver first. Subsequent request cleanup cannot reach the lower driver's abort callback, but cfg80211 frees the request regardless. Driver state can then retain a stale request and use it when it later reports a result. Call cfg80211_pmsr_wdev_down() before stopping the P2P device or NAN interface. This keeps lower-driver request state and cfg80211 request ownership in sync for all of the helpers' callers.

Quoted source text, attributed separately from HOL analysis.