In the Linux kernel, the following vulnerability has been resolved:
misc: fastrpc: Restrict untrusted app to attach to privileged PD
Untrusted application with access to only non-secure fastrpc device node can attach to rootpd or static PDs if it can make the respective init request. This can cause problems as the untrusted application can send bad requests to rootpd or static PDs. Add changes to reject attach to privileged PDs if the request is being made using non-secure fastrpc device node.