{"id":21428,"date":"2026-09-12T04:31:10","date_gmt":"2026-09-11T20:31:10","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-89506"},"modified":"2026-09-12T04:31:10","modified_gmt":"2026-09-11T20:31:10","slug":"cve-2026-89506","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-89506","title":{"rendered":"CVE-2026-89506 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA\/uverbs: Add UVER"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>RDMA\/uverbs: Add UVERBS_ATTR_UHW to UVERBS_METHOD_REG_MR<\/p>\n<p>The original commit missed that three drivers (mthca, irdma, siw) have UHW<br \/>\ndata associated with reg_mr that cannot be passed through the ioctl. They<br \/>\nalso assume that the udata cannot be NULL, so failing to pass a valid<br \/>\nudata can trigger a NULL udata crash in those drivers.<\/p>\n<p>This never happens in real systems since in rdma-core ibv_cmd_reg_mr_ex()<br \/>\ndoes not accept a udata and those three drivers don&#8217;t use it, however a<br \/>\nmalicious userspace could trigger it.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>RDMA\/uverbs: Add UVERBS_ATTR_UHW to UVERBS_METHOD_REG_MR<\/p>\n<p>The original commit missed that three drivers (mthca, irdma, siw) have UH<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-21428","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/21428","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=21428"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=21428"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=21428"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}