In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
wifi: mac80211_hwsim: avoid NULL skb in stop queue drain<\/p>\n
mac80211_hwsim_stop() drops any frames left in data->pending. The loop
\ncurrently checks skb_queue_empty() and then dequeues separately.<\/p>\n
That split is racy with TX status handling, which can remove a pending
\nframe under the queue lock. If the last entry is removed after the empty
\ncheck, skb_dequeue() returns NULL and the stop path passes that NULL skb
\nto ieee80211_free_txskb().<\/p>\n
Use skb_dequeue() as the loop condition instead. The dequeue result is the
\nobject that stop owns and frees, and a concurrent status completion that
\nempties the queue simply makes the loop terminate.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
wifi: mac80211_hwsim: avoid NULL skb in stop queue drain<\/p>\n
mac80211_hwsim_stop() drops any frames left in data->pending. The loop
\ncu<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-26006","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/26006","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=26006"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=26006"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=26006"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}