{"id":"CVE-2016-9644","details":"The __get_user_asm_ex macro in arch/x86/include/asm/uaccess.h in the Linux kernel 4.4.22 through 4.4.28 contains extended asm statements that are incompatible with the exception table, which allows local users to obtain root access on non-SMEP platforms via a crafted application.  NOTE: this vulnerability exists because of incorrect backporting of the CVE-2016-9178 patch to older kernels.","modified":"2026-03-15T22:12:38.200845Z","published":"2016-11-28T03:59:18.283Z","references":[{"type":"WEB","url":"https://lwn.net/Articles/705220/"},{"type":"WEB","url":"http://www.securityfocus.com/bid/94545"},{"type":"ADVISORY","url":"http://www.ubuntu.com/usn/USN-3146-2"},{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2016/11/07/4"},{"type":"ADVISORY","url":"http://www.ubuntu.com/usn/USN-3146-1"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"4.4.22"}]},{"events":[{"introduced":"0"},{"last_affected":"4.4.23"}]},{"events":[{"introduced":"0"},{"last_affected":"4.4.24"}]},{"events":[{"introduced":"0"},{"last_affected":"4.4.25"}]},{"events":[{"introduced":"0"},{"last_affected":"4.4.26"}]},{"events":[{"introduced":"0"},{"last_affected":"4.4.27"}]},{"events":[{"introduced":"0"},{"last_affected":"4.4.28"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-9644.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"}]}