drivers/misc/qseecom.c in the Qualcomm components in Android before 2016-08-05 on Nexus 5 and 7 (2013) devices does not validate ioctl calls, which allows attackers to gain privileges via a crafted application, aka Android internal bug 28747998 and Qualcomm internal bug CR561841.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-9864
Reference (s):
- BID:92219
- URL: http://www.securityfocus.com/bid/92219
- http://source.android.com/security/bulletin/2016-08-01.html
- https://source.codeaurora.org/quic/la/kernel/msm/commit/?id=a1124defc680055e2f2a8c8e3da4a94ca2ec842e