{"id":25619,"date":"2026-09-18T04:31:38","date_gmt":"2026-09-17T20:31:38","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-90210"},"modified":"2026-09-18T04:31:38","modified_gmt":"2026-09-17T20:31:38","slug":"cve-2026-90210","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-90210","title":{"rendered":"CVE-2026-90210 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix UAF in bpf_t"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>bpf: Fix UAF in bpf_trampoline_multi_attach_free on update failure<\/p>\n<p>When bpf_trampoline_update() fails before modify_fentry_multi()\/<br \/>\nunregister_fentry_multi() is called, cur_image is unchanged<br \/>\n(cur_image == old_image) and ftrace still calls into it.  Freeing<br \/>\nold_image in that case causes a UAF.<\/p>\n<p>Only free old_image when it differs from cur_image.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>bpf: Fix UAF in bpf_trampoline_multi_attach_free on update failure<\/p>\n<p>When bpf_trampoline_update() fails before modify_fentry_multi()<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-25619","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/25619","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=25619"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=25619"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=25619"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}