The (1) alloc and (2) free APIs in arch/arm/mach-msm/qdsp6v2/msm_audio_ion.c in the Qualcomm components in Android before 2016-07-05 on Nexus 5 devices do not validate parameters, which allows attackers to gain privileges via a crafted application, aka Android internal bug 28749392 and Qualcomm internal bug CR556425.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-9789
Reference (s):
- BID:91628
- URL: http://www.securityfocus.com/bid/91628
- http://source.android.com/security/bulletin/2016-07-01.html
- https://source.codeaurora.org/quic/la/kernel/msm/commit/?id=5720ed5c3a786e3ba0a2428ac45da5d7ec996b4e