{"id":21380,"date":"2026-09-12T04:31:06","date_gmt":"2026-09-11T20:31:06","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-89458"},"modified":"2026-09-12T04:31:06","modified_gmt":"2026-09-11T20:31:06","slug":"cve-2026-89458","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-89458","title":{"rendered":"CVE-2026-89458 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\ns390\/dasd: Do not com"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>s390\/dasd: Do not complete a failed ESE read as successful<\/p>\n<p>dasd_int_handler() completes an NRF read of an unallocated ESE track by<br \/>\ncalling ese_read() and unconditionally marking the request<br \/>\nDASD_CQR_SUCCESS. dasd_eckd_ese_read() can return an error before it has<br \/>\nzeroed the destination buffer: a failed sense-data parse or a current<br \/>\ntrack outside the requested range both return early, leaving the<br \/>\ndestination pages untouched. The request is still completed successfully,<br \/>\nso the block layer is handed stale \/ uninitialized memory instead of<br \/>\nzeros.<\/p>\n<p>Check the ese_read() return value and fail the request through the normal<br \/>\nerror path instead of forcing DASD_CQR_SUCCESS.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>s390\/dasd: Do not complete a failed ESE read as successful<\/p>\n<p>dasd_int_handler() completes an NRF read of an unallocated ESE track by<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-21380","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/21380","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=21380"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=21380"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=21380"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}