CVE-2026-74559: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: xsk: drain continuation descs after overflow in xsk_build_skb() Fix generic xmit path multi-buffer logic when packets are either too big (count of descriptors exceed MAX_SKB_FRAGS) or an invalid descriptor is included in fragmented packet. Introduce xdp_sock::drain_cont and act upon this flag - when it is set, keep on consuming descriptors from AF_XDP Tx ring and put them directly onto Cq. Previously these descriptors were silently lost and could never be reached again.

Засегнати продукти

• Linux Linux: cf24f5a5feeaae34c1a34d1e04f8ac697290427a преди ecd0d1cde0478c232a867f14ec99cf97aff5eb30; cf24f5a5feeaae34c1a34d1e04f8ac697290427a преди ceb00cb87a22c42d20c39336213db2b843ca9e34; cf24f5a5feeaae34c1a34d1e04f8ac697290427a преди 5e94d74e4f3baebaa083288f33b4be7ce0a34982; cf24f5a5feeaae34c1a34d1e04f8ac697290427a преди bd44a6dcd4248883de90f5dad53ae80066e27096
• Linux Linux: 6.6; преди 6.6; 6.12.114 до 6.12.*; 6.18.44 до 6.18.*; 7.1.8 до 7.1.*; от 7.2 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99265
• CVE-2026-99261
• CVE-2026-99260

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-74559
• https://nvd.nist.gov/vuln/detail/CVE-2026-74559
• https://git.kernel.org/stable/c/ecd0d1cde0478c232a867f14ec99cf97aff5eb30
• https://git.kernel.org/stable/c/ceb00cb87a22c42d20c39336213db2b843ca9e34
• https://git.kernel.org/stable/c/5e94d74e4f3baebaa083288f33b4be7ce0a34982
• https://git.kernel.org/stable/c/bd44a6dcd4248883de90f5dad53ae80066e27096