{"id":21321,"date":"2026-09-12T04:31:02","date_gmt":"2026-09-11T20:31:02","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-80988"},"modified":"2026-09-12T04:31:02","modified_gmt":"2026-09-11T20:31:02","slug":"cve-2026-80988","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-80988","title":{"rendered":"CVE-2026-80988 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nNTB: ntb_transport: F"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>NTB: ntb_transport: Fail TX enqueue when the QP link is down<\/p>\n<p>Commit f195a1a6fe41 (&#8220;ntb: Drop packets when qp link is down&#8221;) meant to<br \/>\nmake ntb_transport_tx_enqueue() drop packets submitted while the QP link<br \/>\nis down, but it only returns 0 without consuming the packet. Zero means<br \/>\nsuccess by this function&#8217;s contract, so ntb_netdev reports NETDEV_TX_OK<br \/>\nand forgets the skb: nothing queued it, nothing frees it, and it leaks,<br \/>\none skb for every transmit racing a link-down.<\/p>\n<p>Return -ENOLINK instead, restoring the contract that a non-zero return<br \/>\nleaves the buffer owned by the caller. With the preceding patch,<br \/>\nntb_netdev frees the skb on non-retryable enqueue failures and returns<br \/>\nNETDEV_TX_OK, so a packet racing with link-down is dropped without leaking<br \/>\nor entering a busy retry loop.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>NTB: ntb_transport: Fail TX enqueue when the QP link is down<\/p>\n<p>Commit f195a1a6fe41 (&#8220;ntb: Drop packets when qp link is down&#8221;) meant <\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-21321","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/21321","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=21321"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=21321"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=21321"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}