tree 09075e620e6b446c569a9fe9d5a2e9c8784dd0f1
parent 8b0a281f538ccd86a96efb35b51918be2473312a
author Alexis Hetu <sugoi@google.com> 1547147066 -0500
committer Alexis Hétu <sugoi@google.com> 1547750678 +0000

Fixed all OOB accesses in VertexProgram and PixelProgram

A lot of arrays in VertexProgram and PixelProgram have fixed sizes,
so programs that have more nested loops or ifs or deeper call stacks
can cause OOB accesses, which causes security issues in Chromium.

Index clamping was added to prevent any OOB memory accesses here.

This could eventually be fixed properly by first verifying these sizes
and giving shader compile errors when these limits are exceeded.

Bug chromium:915197 chromium:915206 chromium:915218 b/116373662

Change-Id: I2d0710ed0ce6585f139cba49d5b5d8c909ae6391
Reviewed-on: https://swiftshader-review.googlesource.com/c/23568
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Corentin Wallez <cwallez@google.com>