In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
wifi: iwlwifi: mvm: fix P2P-Device binding handling<\/p>\n
Our binding handling for P2P-Device can run into the following
\nscenario, as observed by our testing:<\/p>\n
– a station interface is connected on some channel
\n – the P2P-Device does a remain-on-channel (ROC) on that channel
\n – the ROC ends, and the P2P-Device is removed from the binding,
\n but the phy_ctxt pointer is left around as a PHY cache so we
\n don’t need to recalibrate to the channel again and again in
\n case it’s not shared
\n – a binding update by the station interface, even a removal,
\n will re-add the P2P-Device to the binding
\n – the P2P-Device is removed, which removes the PHY context, but
\n it’s still in the binding so the firmware crashes<\/p>\n
Since the P2P device is removed from the binding and only re-
\nadded by unrelated code, but we want to keep the phy_ctxt around
\nas a cache for future ROC usage, fix it by adding a boolean that
\nindicates whether or not the P2P-Device should be added to the
\nbinding, and handle that in the binding iterator. That way, the
\nstation interface cannot re-add the P2P-Device to the binding
\nwhen that isn’t active.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
wifi: iwlwifi: mvm: fix P2P-Device binding handling<\/p>\n
Our binding handling for P2P-Device can run into the following
\nscenario, as ob<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-28679","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/28679","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=28679"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=28679"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=28679"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}