{"id":25736,"date":"2026-09-18T04:31:49","date_gmt":"2026-09-17T20:31:49","guid":{"rendered":"https:\/\/www.54iter.cn\/?vuln=cve-2026-90327"},"modified":"2026-09-18T04:31:49","modified_gmt":"2026-09-17T20:31:49","slug":"cve-2026-90327","status":"publish","type":"vuln","link":"https:\/\/www.54iter.cn\/?vuln=cve-2026-90327","title":{"rendered":"CVE-2026-90327 &#8211; In the Linux kernel, the following vulnerability has been resolved:\n\nphonet: pep: do not w"},"content":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>phonet: pep: do not write beyond optlen in getsockopt<\/p>\n<p>pep_getsockopt() clamps the reported length to the caller&#8217;s buffer with<br \/>\nmin_t(), but then stores the value with put_user(val, (int __user *)<br \/>\noptval), which always writes sizeof(int) bytes. A getsockopt() call with<br \/>\nan optlen smaller than sizeof(int) thus reports the clamped length yet<br \/>\nwrites a full int, one to three bytes past the user buffer.<\/p>\n<p>Write the value with copy_to_user() bounded by len, so at most optlen<br \/>\nbytes are copied, matching the length reported back to userspace.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the Linux kernel, the following vulnerability has been resolved:<\/p>\n<p>phonet: pep: do not write beyond optlen in getsockopt<\/p>\n<p>pep_getsockopt() clamps the reported length to the caller&#8217;s buffer with<br \/>\nmin_<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-25736","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/25736","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=25736"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=25736"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=25736"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}