In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
net\/sched: sch_cake: drop WARN_ON(1) for malformed packets in ACK filter<\/p>\n
The sch_cake ACK filter parses packets to find the TCP header and filter
\nduplicated ACKs if the flow is backlogged. The parsing code contains a
\nWARN_ON(1) which can be triggered by a malformed IP header in certain
\ncases. Depending on the system configuration, this leads either to
\neither spamming dmesg with warnings, or a panic if panic_on_warn is set.<\/p>\n
The code already correctly skips the offending packet in the branch that
\ntriggers the warning, so the WARN_ON itself doesn’t really serve any
\npurpose. So just drop it altogether to avoid the inconvenient side
\neffects.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
net\/sched: sch_cake: drop WARN_ON(1) for malformed packets in ACK filter<\/p>\n
The sch_cake ACK filter parses packets to find the TCP he<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-11274","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/11274","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=11274"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=11274"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=11274"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}