platform/msm_shared/partition_parser.c in the Qualcomm components in Android before 2016-07-05 on Nexus 5 and 7 (2013) devices does not validate certain GUID Partition Table (GPT) data, which allows attackers to bypass intended access restrictions via a crafted MultiMediaCard (MMC), aka Android internal bug 28822878 and Qualcomm internal bug CR823461.