{"id":14939,"date":"2026-09-04T19:02:18","date_gmt":"2026-09-04T11:02:18","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-63885"},"modified":"2026-09-04T19:02:18","modified_gmt":"2026-09-04T11:02:18","slug":"cve-2026-63885","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-63885","title":{"rendered":"CVE-2026-63885 [HIGH] &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\ndrm\/gem: fix race bet"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>drm\/gem: fix race between change_handle and handle_delete<\/p>\n<p>drm_gem_change_handle_ioctl leaves the old handle live in the IDR<br \/>\nduring the window between spin_unlock(table_lock) and the final<br \/>\nspin_lock(table_lock). A concurrent drm_gem_handle_delete on the old<br \/>\nhandle succeeds in this window, decrements handle_count to 0, and frees<br \/>\nthe GEM object while the new handle&#8217;s IDR entry still references it.<\/p>\n<p>NULL the old handle&#8217;s IDR entry before dropping table_lock so that any<br \/>\nconcurrent GEM_CLOSE on the old handle sees NULL and returns -EINVAL.<br \/>\nRestore the old entry on the prime-bookkeeping error path.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>drm\/gem: fix race between change_handle and handle_delete<\/p>\n<p>drm_gem_change_handle_ioctl leaves the old handle live in the IDR<br \/>\nduring<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-14939","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/14939","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=14939"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=14939"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=14939"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}