Vulnerability Database

299,759

Total vulnerabilities in the database

CVE-2016-9644

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.

  • Published: Nov 28, 2016
  • Updated: Nov 9, 2025
  • CVE: CVE-2016-9644
  • Severity: High
  • Exploit:

CVSS v2:

  • Severity: High
  • Score: 9.3
  • AV:N/AC:M/Au:N/C:C/I:C/A:C

CWEs:

Software From Fixed in
linux / linux_kernel 4.4.28 4.4.28.x
linux / linux_kernel 4.4.22 4.4.22.x
linux / linux_kernel 4.4.25 4.4.25.x
linux / linux_kernel 4.4.26 4.4.26.x
linux / linux_kernel 4.4.24 4.4.24.x
linux / linux_kernel 4.4.23 4.4.23.x
linux / linux_kernel 4.4.27 4.4.27.x