commit c0b7e10c6a68f59e1653e6c18e6bc954b3c3f0cf
author commit-bot@chromium.org <commit-bot@chromium.org@2bbb7eff-a529-9590-31e7-b0007b416f81> Wed Oct 23 17:06:21 2013 +0000
committer commit-bot@chromium.org <commit-bot@chromium.org@2bbb7eff-a529-9590-31e7-b0007b416f81> Wed Oct 23 17:06:21 2013 +0000
tree 6a0bb372e8e3dfe22909629962e95d9c11ece4a9
parent 759befb72c558202de65a480c44d7b27428ec312

Initial error handling code

I made it as simple as possible. The impact seems minimal and it should do what's necessary to make this code secure.

BUG=

Committed: http://code.google.com/p/skia/source/detail?r=11247

R=reed@google.com, scroggo@google.com, djsollen@google.com, sugoi@google.com, bsalomon@google.com, mtklein@google.com, senorblanco@google.com, senorblanco@chromium.org

Author: sugoi@chromium.org

Review URL: https://codereview.chromium.org/23021015

git-svn-id: http://skia.googlecode.com/svn/trunk@11922 2bbb7eff-a529-9590-31e7-b0007b416f81

src/effects/SkBlurImageFilter.cpp

diff --git a/src/effects/SkBlurImageFilter.cpp b/src/effects/SkBlurImageFilter.cpp
index abbf971..a820152 100644
--- a/src/effects/SkBlurImageFilter.cpp
+++ b/src/effects/SkBlurImageFilter.cpp
@@ -19,6 +19,10 @@
   : INHERITED(buffer) {
     fSigma.fWidth = buffer.readScalar();
     fSigma.fHeight = buffer.readScalar();
+    buffer.validate(SkScalarIsFinite(fSigma.fWidth) &&
+                    SkScalarIsFinite(fSigma.fHeight) &&
+                    (fSigma.fWidth >= 0) &&
+                    (fSigma.fHeight >= 0));
 }
 
 SkBlurImageFilter::SkBlurImageFilter(SkScalar sigmaX,