{"id":39059,"date":"2026-10-16T00:34:57","date_gmt":"2026-10-15T16:34:57","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-98388"},"modified":"2026-10-16T00:34:57","modified_gmt":"2026-10-15T16:34:57","slug":"cve-2026-98388","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-98388","title":{"rendered":"CVE-2026-98388 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nexec: do_close_on_exe"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>exec: do_close_on_exec() before taking exec_update_lock<\/p>\n<p>do_close_on_exec() currently happens while holding the exec_update_lock,<br \/>\nwhich is used in a lot of places that access process state to<br \/>\nsynchronize access checks.<br \/>\nI recently added another such use of exec_update_lock, causing a<br \/>\nregression.<\/p>\n<p>do_close_on_exec() can block waiting for a reply from a filesystem.<br \/>\nThat means a hung filesystem can block codepaths that use<br \/>\nexec_update_lock; and it also means that a FUSE filesystem which<br \/>\nattempts to inspect the calling process can deadlock.<\/p>\n<p>To avoid such problems, move do_close_on_exec() before the<br \/>\nexec_update_lock is taken, but after the FD table has been copied if<br \/>\nnecessary.<\/p>\n<p>I have looked through all the calls between the old and new position of<br \/>\nthe do_close_on_exec() call; there seems to be no file descriptor table<br \/>\naccess in between.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>exec: do_close_on_exec() before taking exec_update_lock<\/p>\n<p>do_close_on_exec() currently happens while holding the exec_update_lock,<br \/>\nw<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-39059","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/39059","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=39059"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=39059"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=39059"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}