{"id":21296,"date":"2026-09-12T04:30:59","date_gmt":"2026-09-11T20:30:59","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-80963"},"modified":"2026-09-12T04:30:59","modified_gmt":"2026-09-11T20:30:59","slug":"cve-2026-80963","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-80963","title":{"rendered":"CVE-2026-80963 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\ndm-stats: fix a crash"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>dm-stats: fix a crash if allocation of per-cpu data fails<\/p>\n<p>If &#8220;dm_kvzalloc(percpu_alloc_size, cpu_to_node(cpu))&#8221; fails, the code<br \/>\njumps to the &#8220;out&#8221; label and calls dm_stat_free. dm_stat_free does<br \/>\n&#8220;for_each_possible_cpu(cpu) { dm_kvfree(s-&gt;stat_percpu[cpu][0].histogram,<br \/>\ns-&gt;histogram_alloc_size);&#8221;, which crashes with NULL pointer dereference<br \/>\nif s-&gt;stat_percpu[cpu] is NULL.<\/p>\n<p>This commit fixes the bug by testing s-&gt;stat_percpu[cpu] for NULL before<br \/>\nusing it.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>dm-stats: fix a crash if allocation of per-cpu data fails<\/p>\n<p>If &#8220;dm_kvzalloc(percpu_alloc_size, cpu_to_node(cpu))&#8221; fails, the code<br \/>\nju<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-21296","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/21296","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=21296"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=21296"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=21296"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}