{"id":17361,"date":"2026-09-05T02:31:02","date_gmt":"2026-09-04T18:31:02","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-80857"},"modified":"2026-09-05T02:31:02","modified_gmt":"2026-09-04T18:31:02","slug":"cve-2026-80857","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-80857","title":{"rendered":"CVE-2026-80857 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nfuse: wait for FR_FIN"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>fuse: wait for FR_FINISHED on abort_on_kill to prevent use-after-free<\/p>\n<p>The abort_on_kill path in request_wait_answer() calls fuse_abort_conn()<br \/>\nand returns without waiting for FR_FINISHED.  If fuse_dev_do_write() is<br \/>\nconcurrently processing the same request (FR_LOCKED set), the caller<br \/>\nfrees req-&gt;args while it is still being accessed, causing a<br \/>\nuse-after-free.<\/p>\n<p>Fix this by jumping to the existing wait_event(FR_FINISHED) instead of<br \/>\nreturning early.  The wait will not hang because fuse_abort_conn()<br \/>\nensures all requests are ended.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>fuse: wait for FR_FINISHED on abort_on_kill to prevent use-after-free<\/p>\n<p>The abort_on_kill path in request_wait_answer() calls fuse_a<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-17361","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/17361","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=17361"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=17361"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=17361"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}