{"id":29047,"date":"2026-09-25T20:31:45","date_gmt":"2026-09-25T12:31:45","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-97615"},"modified":"2026-09-25T20:31:45","modified_gmt":"2026-09-25T12:31:45","slug":"cve-2026-97615","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-97615","title":{"rendered":"CVE-2026-97615 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nnet: bridge: use opti"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>net: bridge: use option bits for CFM\/MRP frame handlers<\/p>\n<p>CFM and MRP register a global br_frame_type whose hlist_node is linked<br \/>\ninto the per-bridge frame_type_list when the first MEP\/MRP instance is<br \/>\ncreated. Enabling the protocol on multiple bridges therefore inserts the<br \/>\nsame node into multiple lists. Unregistering it on one bridge then<br \/>\ncorrupts list state belonging to another.<\/p>\n<p>These handlers can only be installed once per bridge, and they are<br \/>\nuncommon. Track their per-bridge enable state with net_bridge option<br \/>\nbits, which already live on the Rx hot cache line, and dispatch the<br \/>\nmatching handler directly from the receive path. Check both bits<br \/>\ntogether first as an unlikely case.<\/p>\n<p>Remove the generic frame_type_list and br_frame_type helpers, which<br \/>\nhave had no other users since CFM and MRP were added. That shrinks<br \/>\nstruct net_bridge by 8 bytes and drops the list walk from the fast<br \/>\npath. When neither protocol is compiled in, BR_CFM_MRP_OPTS is 0 and<br \/>\nthe compiler prunes the branch.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>net: bridge: use option bits for CFM\/MRP frame handlers<\/p>\n<p>CFM and MRP register a global br_frame_type whose hlist_node is linked<br \/>\nint<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-29047","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/29047","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=29047"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=29047"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=29047"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}