Privilege escalation via display service buffer overflow

Buffer overflow in Qualcomm Snapdragon Mobile and related platforms allows local users to execute code as the display service and gain privileges. The display service copies process-supplied data without checking the destination size, permitting memory corruption and code execution in that service context. Exploitation requires a local process on an affected Snapdragon platform; the documented consequence is privilege escalation, with confidentiality, integrity, and availability impact possible under the service account.