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(parent: afac0e4) | patch
gpu: host1x: Copy gathers before verification
authorArto Merilainen <amerilainen@nvidia.com>
Wed, 29 May 2013 10:26:05 +0000 (13:26 +0300)
committerThierry Reding <thierry.reding@gmail.com>
Sat, 22 Jun 2013 10:43:53 +0000 (12:43 +0200)
commit3364cd28906d87f0c77754998679bb66639d4112
treefdd2d07872db8694df523fb64bc8779fe9f55f23tree | snapshot
parentafac0e43c6c98473cce18fdeb5f7dda86dcf244fcommit | diff
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>
drivers/gpu/host1x/job.c diff | blob | history
Beck SC1x5 Kernel