{"id":25824,"date":"2026-09-18T04:31:56","date_gmt":"2026-09-17T20:31:56","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-90415"},"modified":"2026-09-18T04:31:56","modified_gmt":"2026-09-17T20:31:56","slug":"cve-2026-90415","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-90415","title":{"rendered":"CVE-2026-90415 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA\/cxgb4: free STAG"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>RDMA\/cxgb4: free STAG index when TPT entry write fails<\/p>\n<p>write_tpt_entry() allocates a new STAG index with c4iw_get_resource() and<br \/>\nbumps stats.stag.cur before programming the entry.  When<br \/>\nwrite_adapter_mem() fails, it returns the error without releasing the index<br \/>\nor reversing the statistic.  No MR is inserted into rhp-&gt;mrs, so<br \/>\nderegistration never reclaims it, leaking the index until device teardown.<\/p>\n<p>Record whether this call allocated the index and, on a failed write, return<br \/>\nit to tpt_table and decrement stats.stag.cur.  Key the rollback on both the<br \/>\nwrite error and that flag, not the error alone: a non-reset update carries<br \/>\na caller-owned STAG that this call did not allocate and must not free.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>RDMA\/cxgb4: free STAG index when TPT entry write fails<\/p>\n<p>write_tpt_entry() allocates a new STAG index with c4iw_get_resource() and<br \/>\nb<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-25824","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/25824","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=25824"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=25824"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=25824"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}