In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
net: stmmac: clear stale buf->page after recycling on skb build failure<\/p>\n
In stmmac_rx(), when napi_build_skb() fails the descriptor page is
\nrecycled back to the page pool with page_pool_recycle_direct(), but
\nbuf->page is left pointing at the recycled page, unlike every other
\nconsumption site in the function which clears the pointer after handing
\nthe page away.<\/p>\n
With the stale pointer stmmac_rx_refill() skips the replacement
\nallocation and programs the already-recycled page back into the RX
\ndescriptor.<\/p>\n
Clear buf->page on the napi_build_skb() failure path to keep the buffer
\nlifecycle consistent with the other consumption sites.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
net: stmmac: clear stale buf->page after recycling on skb build failure<\/p>\n
In stmmac_rx(), when napi_build_skb() fails the descriptor<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-41043","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/41043","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=41043"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=41043"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=41043"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}