CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се локално, без особени условия, с обикновен потребителски вход и без действие от потребителя.
- Експлоатация: няма данни за експлоатация
- Атаката не може да се автоматизира
Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: use wiphy work for socket owner autodisconnect nl80211_netlink_notify() walks the cfg80211 wireless device list when a NETLINK_GENERIC socket is released. If the socket owns a connection, the notifier queues the embedded wdev->disconnect_wk work item. That work is a plain work_struct today. NETDEV_GOING_DOWN cancels it, but a NETLINK_URELEASE notifier that already observed conn_owner_nlportid can queue it after that cancel returns. _cfg80211_unregister_wdev() then removes the wdev from the list and waits for RCU readers, but synchronize_net() does not drain work queued by such a reader. Make the autodisconnect work a wiphy_work instead. The callback already needs the wiphy mutex, and wiphy_work runs under that mutex. This lets teardown cancel pending autodisconnect work while holding the mutex, without a cancel_work_sync() vs. worker locking concern. Also cancel the wiphy work after list_del_rcu() and synchronize_net(). Any NETLINK_URELEASE notifier that had already reached the wdev list has then either queued the work and it is removed, or can no longer find the wdev.
Засегнати продукти
- Linux Linux: bd2522b168847106c1885f0319a2833bdf88bf9a преди 23517673b1eecaec95e61dde285220d5a980cf3f; bd2522b168847106c1885f0319a2833bdf88bf9a преди c55590e4c69e0fd194df6d20bc35381c201d99e1; bd2522b168847106c1885f0319a2833bdf88bf9a преди 4087a9ba4ece70297a4174afaa41c0b700302b65; bd2522b168847106c1885f0319a2833bdf88bf9a преди c2ddd180bbee766cf7359473d623423ea9485d93; bd2522b168847106c1885f0319a2833bdf88bf9a преди 6d6123fef5a4af175cc6b6b12a03dd0f3c240b79; bd2522b168847106c1885f0319a2833bdf88bf9a преди 0c2ed186bbe14304415476d6707b747dddcd8583
- Linux Linux: 4.11; преди 4.11; 6.1.191 до 6.1.*; 6.6.160 до 6.6.*; 6.12.114 до 6.12.*; 6.18.57 до 6.18.*; 7.1.6 до 7.1.*; от 7.2 нататък
Вид слабост
История
- 10 август 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-68404
- https://nvd.nist.gov/vuln/detail/CVE-2026-68404
- https://git.kernel.org/stable/c/23517673b1eecaec95e61dde285220d5a980cf3f
- https://git.kernel.org/stable/c/c55590e4c69e0fd194df6d20bc35381c201d99e1
- https://git.kernel.org/stable/c/4087a9ba4ece70297a4174afaa41c0b700302b65
- https://git.kernel.org/stable/c/c2ddd180bbee766cf7359473d623423ea9485d93
- https://git.kernel.org/stable/c/6d6123fef5a4af175cc6b6b12a03dd0f3c240b79
- https://git.kernel.org/stable/c/0c2ed186bbe14304415476d6707b747dddcd8583