{"id":21549,"date":"2026-09-12T04:31:20","date_gmt":"2026-09-11T20:31:20","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-89627"},"modified":"2026-09-12T04:31:20","modified_gmt":"2026-09-11T20:31:20","slug":"cve-2026-89627","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-89627","title":{"rendered":"CVE-2026-89627 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nHID: roccat: free buf"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>HID: roccat: free buffered reports when destroying device<\/p>\n<p>roccat_report_event() duplicates each report with kmemdup() and stores<br \/>\nthe allocation in a circular-buffer slot. The allocation is released only<br \/>\nwhen that slot is reused.<\/p>\n<p>The device destruction paths free struct roccat_device without releasing<br \/>\nreports still stored in cbuf[]. This makes those allocations unreachable<br \/>\nand leaks up to ROCCAT_CBUF_SIZE report buffers per device.<\/p>\n<p>Add a small destructor that frees every buffered report before freeing the<br \/>\ndevice, and use it in both paths that can destroy a registered device.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>HID: roccat: free buffered reports when destroying device<\/p>\n<p>roccat_report_event() duplicates each report with kmemdup() and stores<br \/>\nt<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-21549","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/21549","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=21549"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=21549"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=21549"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}