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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2016-11-28T03:01:00

Updated: 2024-08-06T02:59:03.223Z

Reserved: 2016-11-27T00:00:00

Link: CVE-2016-9644

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2016-11-28T03:59:18.283

Modified: 2017-01-07T03:00:45.400

Link: CVE-2016-9644

cve-icon Redhat

Severity : Important

Publid Date: 2016-11-03T00:00:00Z

Links: CVE-2016-9644 - Bugzilla