{"id":7348,"date":"2026-09-04T18:49:31","date_gmt":"2026-09-04T10:49:31","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-74396"},"modified":"2026-09-04T18:49:31","modified_gmt":"2026-09-04T10:49:31","slug":"cve-2026-74396","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-74396","title":{"rendered":"CVE-2026-74396 [HIGH] &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA\/mlx5: Fix UMR XL"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>RDMA\/mlx5: Fix UMR XLT cleanup on ODP populate failure<\/p>\n<p>mlx5r_umr_update_xlt() allocates and DMA maps an XLT buffer with<br \/>\nmlx5r_umr_create_xlt(). The buffer is released by the common cleanup path<br \/>\nthrough mlx5r_umr_unmap_free_xlt().<\/p>\n<p>After mlx5_odp_populate_xlt() became fallible, its error path returned<br \/>\ndirectly and skipped that cleanup. This leaks the XLT DMA mapping and<br \/>\nbuffer. If the emergency XLT page was used, it also leaves<br \/>\nxlt_emergency_page_mutex locked.<\/p>\n<p>Break out of the loop so execution falls through the existing cleanup path.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>RDMA\/mlx5: Fix UMR XLT cleanup on ODP populate failure<\/p>\n<p>mlx5r_umr_update_xlt() allocates and DMA maps an XLT buffer with<br \/>\nmlx5r_umr_<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-7348","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/7348","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=7348"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7348"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7348"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}