Provide references for CVE-2017-6421.
Where can I find more information about CVE-2017-6421?
References are available at: https://source.android.com/security/bulletin/2017-06-01, https://source.codeaurora.org/quic/la//kernel/msm-4.4/commit/?id=be42c7ff1f0396484882451fd18f47144c8f1b6b, http://www.securitytracker.com/id/1038623.