{"id":25597,"date":"2026-09-18T04:31:36","date_gmt":"2026-09-17T20:31:36","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-90188"},"modified":"2026-09-18T04:31:36","modified_gmt":"2026-09-17T20:31:36","slug":"cve-2026-90188","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-90188","title":{"rendered":"CVE-2026-90188 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nnull_blk: free global"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>null_blk: free global tag_set on init error path<\/p>\n<p>If shared_tags is enabled, null_setup_tagset() allocates the global tag_set<br \/>\nvia null_init_global_tag_set(). If device creation later fails, err_dev<br \/>\ndestroys the default devices and calls unregister_blkdev(), but never frees<br \/>\nthe global tag_set. Since module init failed, null_exit() is never invoked,<br \/>\nso the global tag_set&#8217;s tags and maps are permanently leaked.<\/p>\n<p>Free the global tag_set in err_dev, matching null_exit() which does<br \/>\nif (tag_set.ops) blk_mq_free_tag_set(&amp;tag_set).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>null_blk: free global tag_set on init error path<\/p>\n<p>If shared_tags is enabled, null_setup_tagset() allocates the global tag_set<br \/>\nvia n<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-25597","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/25597","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=25597"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=25597"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=25597"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}