CVE-2015-6640

high

Published 2016-01-06 · Modified 2026-05-06

CVSS v3

7.8

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS v2

9.3

VIR risk

7.8

Description

The prctl_set_vma_anon_name function in kernel/sys.c in Android before 5.1.1 LMY49F and 6.0 before 2016-01-01 does not ensure that only one vma is accessed in a certain update action, which allows attackers to gain privileges or cause a denial of service (vma list corruption) via a crafted application, aka internal bug 20017123.

Predictions

Exploit likelihood

75%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: security@android.com — http://source.android.com/security/bulletin/2016-01-01.html

References

http://source.android.com/security/bulletin/2016-01-01.html
http://www.securitytracker.com/id/1034592
https://android.googlesource.com/kernel%2Fcommon/+/69bfe2d957d903521d32324190c2754cb073be15
http://source.android.com/security/bulletin/2016-01-01.html
http://www.securitytracker.com/id/1034592
https://android.googlesource.com/kernel%2Fcommon/+/69bfe2d957d903521d32324190c2754cb073be15

CWEs

CWE-264

Verify integrity in audit chain (admin only). AS-IS.