Integer overflow in lib/heap/heap.c in the Qualcomm components in Android before 2016-07-05 on Nexus 5 and 7 (2013) devices allows attackers to gain privileges via a crafted application, aka Android internal bug 28822150 and Qualcomm internal bug CR692478.
https://source.codeaurora.org/quic/la/kernel/lk/commit/?id=6390f200d966dc13cf61bb5abbe3110447ca82b5