{"id":24650,"date":"2026-09-16T20:32:35","date_gmt":"2026-09-16T12:32:35","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-89963"},"modified":"2026-09-16T20:32:35","modified_gmt":"2026-09-16T12:32:35","slug":"cve-2026-89963","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-89963","title":{"rendered":"CVE-2026-89963 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc\/kexec_file: F"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>powerpc\/kexec_file: Fix null-ptr-def in extra size calculation<\/p>\n<p>A static Sashiko AI review identified a potential NULL pointer<br \/>\ndereference in kexec_extra_fdt_size_ppc64().<\/p>\n<p>On platforms without any reserved memory regions,<br \/>\nget_reserved_memory_ranges() can return 0 while leaving &#8216;rmem&#8217;<br \/>\nunallocated as NULL. Passing it directly leads to a kernel panic when<br \/>\nevaluating &#8216;rmem-&gt;nr_ranges&#8217;.<\/p>\n<p>Add a NULL check for &#8216;rmem&#8217; to prevent this crash.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>powerpc\/kexec_file: Fix null-ptr-def in extra size calculation<\/p>\n<p>A static Sashiko AI review identified a potential NULL pointer<br \/>\ndere<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-24650","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/24650","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=24650"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=24650"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=24650"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}