{"id":24711,"date":"2026-09-16T20:32:40","date_gmt":"2026-09-16T12:32:40","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-90023"},"modified":"2026-09-16T20:32:40","modified_gmt":"2026-09-16T12:32:40","slug":"cve-2026-90023","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-90023","title":{"rendered":"CVE-2026-90023 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: f_mass_s"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>usb: gadget: f_mass_storage: fix null pointer dereference in fsg_common_set_num_buffers()<\/p>\n<p>Previously fsg_num_buffers_validate() was removed as it was not<br \/>\nnecessary due to Kconfig setting the limits for n from 2 to 256 with<br \/>\ndefault as 2. However, setting the page content in such a way that<br \/>\nkstrtou8() reflects n value as either 0 or 1 bypasses these<br \/>\nrestrictions leading to a null pointer dereference if n is 0. Fix<br \/>\nthis by adding a check for n &lt; 2 and returning -EINVAL if n is<br \/>\neither 0 or 1 consistent with Kconfig logic.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>usb: gadget: f_mass_storage: fix null pointer dereference in fsg_common_set_num_buffers()<\/p>\n<p>Previously fsg_num_buffers_validate() wa<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-24711","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/24711","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=24711"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=24711"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=24711"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}