{"id":25472,"date":"2026-09-18T04:31:25","date_gmt":"2026-09-17T20:31:25","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-90063"},"modified":"2026-09-18T04:31:25","modified_gmt":"2026-09-17T20:31:25","slug":"cve-2026-90063","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-90063","title":{"rendered":"CVE-2026-90063 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nvirtio-net: Ensure th"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>virtio-net: Ensure that TCP packets don&#8217;t overflow gso_segs<\/p>\n<p>The user can specify any gso_size in a packet crafted with an AF_PACKET<br \/>\nPACKET_VNET_HDR socket, even smaller than TCP_MIN_GSO_SIZE = 8. At the<br \/>\nsame time, GSO_MAX_SIZE = 8 * GSO_MAX_SEGS = 8 * 65535. When the user<br \/>\ncrafts a packet with gso_size &lt; 8, there is a risk for partial GSO to<br \/>\noverflow the 16-bit gso_segs field when dividing the SKB length by<br \/>\ngso_size.<\/p>\n<p>Adjust gso_size of TCP packets to be at least TCP_MIN_GSO_SIZE = 8. Keep<br \/>\ngso_size of UDP GSO packets, as gso_size=1 is valid and explicitly<br \/>\ntested at tools\/testing\/selftests\/net\/tun.c:649.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>virtio-net: Ensure that TCP packets don&#8217;t overflow gso_segs<\/p>\n<p>The user can specify any gso_size in a packet crafted with an AF_PACKE<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-25472","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/25472","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=25472"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=25472"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=25472"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}