In the Linux kernel, the following vulnerability has been resolved:

wifi: cfg80211: fix use-after-free in cmp_bss()

Following bss_free() quirk introduced in commit 776b3580178f
("cfg80211: track hidden SSID networks properly"), adjust
cfg80211_update_known_bss() to free the last beacon frame
elements only if they're not shared via the corresponding
'hidden_beacon_bss' pointer.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Fri, 19 Sep 2025 15:30:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: fix use-after-free in cmp_bss() Following bss_free() quirk introduced in commit 776b3580178f ("cfg80211: track hidden SSID networks properly"), adjust cfg80211_update_known_bss() to free the last beacon frame elements only if they're not shared via the corresponding 'hidden_beacon_bss' pointer.
Title wifi: cfg80211: fix use-after-free in cmp_bss()
References

cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2025-09-19T15:26:33.787Z

Reserved: 2025-04-16T07:20:57.143Z

Link: CVE-2025-39864

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2025-09-19T16:15:45.420

Modified: 2025-09-19T16:15:45.420

Link: CVE-2025-39864

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.