wifi: cfg80211: stop PMSR before P2P and NAN teardown

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Summary

CVECVE-2026-90343
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-17 17:17:32 UTC
Updated2026-10-21 13:20:51 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.001730000 probability, percentile 0.064190000 (date 2026-10-21)

VersionSourceTypeScoreSeverityVector
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 9bb7e0f24e7e7d00daa1219b14539e2e602649b2 9374943fc5a45915e4ea8b597b6a17d3b571bcbf git Not specified
CNA Linux Linux affected 9bb7e0f24e7e7d00daa1219b14539e2e602649b2 dc1e41df6e683ff9522bf40dd3125ed7ccd8a4e4 git Not specified
CNA Linux Linux affected 9bb7e0f24e7e7d00daa1219b14539e2e602649b2 7a22cbc6c6bdd3c3811b4ce13875685c520f94de git Not specified
CNA Linux Linux affected 9bb7e0f24e7e7d00daa1219b14539e2e602649b2 db3439ad11ac5e52decdefe784c98b21c3757848 git Not specified
CNA Linux Linux affected 9bb7e0f24e7e7d00daa1219b14539e2e602649b2 6c5fc504d0d6934132637aa3db4b9b58148eaa78 git Not specified
CNA Linux Linux affected 5.0 Not specified
CNA Linux Linux unaffected 5.0 semver Not specified
CNA Linux Linux unaffected 6.6.160 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.114 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.52 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.6 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/db3439ad11ac5e52decdefe784c98b21c3757848 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/6c5fc504d0d6934132637aa3db4b9b58148eaa78 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/7a22cbc6c6bdd3c3811b4ce13875685c520f94de 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/dc1e41df6e683ff9522bf40dd3125ed7ccd8a4e4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/9374943fc5a45915e4ea8b597b6a17d3b571bcbf 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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