tree fdd2d07872db8694df523fb64bc8779fe9f55f23
parent afac0e43c6c98473cce18fdeb5f7dda86dcf244f
author Arto Merilainen <amerilainen@nvidia.com> 1369823165 +0300
committer Thierry Reding <thierry.reding@gmail.com> 1371897833 +0200

gpu: host1x: Copy gathers before verification

The firewall verified gather buffers before copying them. This
allowed a malicious application to rewrite the buffer content by
timing the rewrite carefully.

This patch makes the buffer validation occur after copying the
buffers.

Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>