CVE-2025-39864
Full vulnerability record from the local CVENow database.
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.
Severity
HIGH
CVSS score
7.8
(v3.1)
Vulnerability status
Modified
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2025-09-19 16:15:45.420000
Last modified
2026-10-19 21:10:00.160000
View original CVE JSON
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"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2025-09-19T16:15:45.420",
"lastModified": "2026-10-19T21:10:00.160",
"vulnStatus": "Modified",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: fix use-after-free in cmp_bss()\n\nFollowing bss_free() quirk introduced in commit 776b3580178f\n(\"cfg80211: track hidden SSID networks properly\"), adjust\ncfg80211_update_known_bss() to free the last beacon frame\nelements only if they're not shared via the corresponding\n'hidden_beacon_bss' pointer."
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"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nwifi: cfg80211: solucionar uso después de liberación en cmp_bss()\n\nTras la peculiaridad de bss_free() introducida en el commit 776b3580178f ('cfg80211: rastrear redes SSID ocultas correctamente'), ajustar cfg80211_update_known_bss() para liberar los últimos elementos del marco de baliza solo si no se comparten a través del puntero 'hidden_beacon_bss' correspondiente."
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