{"id":11259,"date":"2026-09-04T18:53:07","date_gmt":"2026-09-04T10:53:07","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-74678"},"modified":"2026-09-04T18:53:07","modified_gmt":"2026-09-04T10:53:07","slug":"cve-2026-74678","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-74678","title":{"rendered":"CVE-2026-74678 [HIGH] &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nnet: usb: ax88179_178"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>net: usb: ax88179_178a: fix skb leak in ax88179_tx_fixup()<\/p>\n<p>When the interface has NETIF_F_SG enabled and skb_linearize() fails in<br \/>\nax88179_tx_fixup(), the function returns NULL without freeing the skb.<\/p>\n<p>usbnet_start_xmit() treats a NULL return from tx_fixup() as a drop<br \/>\n(info-&gt;flags does not set FLAG_MULTI_PACKET for this driver), jumping<br \/>\nto the &#8220;drop&#8221; label where it does `if (skb) dev_kfree_skb_any(skb)`.<br \/>\nBecause tx_fixup() returned NULL, the local skb variable in<br \/>\nusbnet_start_xmit() is NULL, so the original skb is never freed \u2014 a<br \/>\nmemory leak on every TX frame whose linearization fails (i.e. under<br \/>\nmemory pressure).<\/p>\n<p>Free the skb before returning, matching the error handling already used<br \/>\nfor the pskb_expand_head() failure path in the same function.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>net: usb: ax88179_178a: fix skb leak in ax88179_tx_fixup()<\/p>\n<p>When the interface has NETIF_F_SG enabled and skb_linearize() fails in<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-11259","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/11259","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=11259"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=11259"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=11259"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}