{"id":29062,"date":"2026-09-25T20:31:47","date_gmt":"2026-09-25T12:31:47","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-97906"},"modified":"2026-09-25T20:31:47","modified_gmt":"2026-09-25T12:31:47","slug":"cve-2026-97906","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-97906","title":{"rendered":"CVE-2026-97906 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nbootconfig: Fix integ"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>bootconfig: Fix integer overflow in initrd size check<\/p>\n<p>Sashiko reported that in get_boot_config_from_initrd(), a crafted initrd<br \/>\nwith a huge bootconfig size (such as 0xFFFFFFFF) can cause the pointer<br \/>\narithmetic:<\/p>\n<p>    data = ((void *)hdr) &#8211; size;<\/p>\n<p>to wrap around on 32-bit systems (or when pointer subtraction overflows).<br \/>\nBecause data wraps around, the subsequent bounds check:<\/p>\n<p>    if ((unsigned long)data  4.29 GB, an<br \/>\nunbounded 32-bit size can similarly bypass the initrd_start check.<\/p>\n<p>Fix this by:<br \/>\n1. Ensuring the initrd is at least large enough to contain the bootconfig<br \/>\n   footer and verifying hdr is within the initrd bounds.<br \/>\n2. Checking that size does not exceed XBC_DATA_MAX and does not exceed<br \/>\n   the available space between initrd_start and hdr before performing<br \/>\n   pointer subtraction.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>bootconfig: Fix integer overflow in initrd size check<\/p>\n<p>Sashiko reported that in get_boot_config_from_initrd(), a crafted initrd<br \/>\nwit<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-29062","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/29062","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=29062"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=29062"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=29062"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}