MEDIUM
kernel/events/core.c in the performance subsystem in the Linux kernel before 4.0 mismanages locks during certain migrations, which allows local users to gain privileges via a crafted application, aka Android internal bug 30955111.
http://source.android.com/security/bulletin/2016-12-01.html
http://www.debian.org/security/2017/dsa-3791
http://www.securityfocus.com/bid/94679
https://bugzilla.redhat.com/show_bug.cgi?id=1403842
https://github.com/torvalds/linux/commit/f63a8daa5812afef4f06c962351687e1ff9ccb2b
Source: MITRE
Published: 2016-12-28
Updated: 2017-11-04
Type: CWE-264
Base Score: 6.9
Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C
Impact Score: 10
Exploitability Score: 3.4
Severity: MEDIUM
Base Score: 7
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 1
Severity: HIGH