CVE-2016-9644

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CVSS 3.0

7.8 high

EPSS

1%p72

Published

Nov 28, 2016 (Nov 28, 2016)

Modified

Jun 17, 2026

Description

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.

Vendors: linux
Products: linux kernel
Weakness: CWE-264
Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (1.5%)

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