In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
usb: gadget: uvc: fix dangling pointers in uvc_function_bind() and uvc_function_unbind()<\/p>\n
In uvc_function_bind() error path, we use usb_ep_free_request which
\nuses uvc->control_req but does not set it to NULL afterwards. Thus,
\nuvc->control_req is a dangling pointer causing a UAF. Also we do not set
\nthe uvc->control_buf pointer to NULL after freeing it, which is another
\ndangling pointer. Fix it by setting uvc->control_req to NULL after we run
\nusb_ep_free_request() and uvc->control_buf to NULL after kfree. Do the
\nsame for uvc_function_unbind().<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
usb: gadget: uvc: fix dangling pointers in uvc_function_bind() and uvc_function_unbind()<\/p>\n
In uvc_function_bind() error path, we use<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-21655","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/21655","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=21655"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=21655"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=21655"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}