{"id":21657,"date":"2026-09-12T04:31:29","date_gmt":"2026-09-11T20:31:29","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-89735"},"modified":"2026-09-12T04:31:29","modified_gmt":"2026-09-11T20:31:29","slug":"cve-2026-89735","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-89735","title":{"rendered":"CVE-2026-89735 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: midi2: r"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>usb: gadget: midi2: remove default configfs groups on teardown<\/p>\n<p>f_midi2_alloc_inst() creates default configfs child groups for the<br \/>\ndefault endpoint and default block using configfs_add_default_group(),<br \/>\nsetting their internal refcount to 1.<\/p>\n<p>However, during function teardown in f_midi2_free_inst() or EP cleanup<br \/>\nin f_midi2_ep_opts_release(), configfs_remove_default_groups() is<br \/>\nnever called, therefore never dropping the refcount and leaking struct<br \/>\nf_midi2_ep_opts and f_midi2_block_opts.<\/p>\n<p>Add the missing configfs_remove_default_groups() in the afformentioned<br \/>\nfunctions to free the structs properly.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>usb: gadget: midi2: remove default configfs groups on teardown<\/p>\n<p>f_midi2_alloc_inst() creates default configfs child groups for the<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-21657","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/21657","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=21657"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=21657"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=21657"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}