From b456e2fc84b1bbb7209904c0835f671a59663ac9 Mon Sep 17 00:00:00 2001
From: Robert Phillips <robertphillips@google.com>
Date: Mon, 9 Jul 2018 15:06:32 -0400
Subject: Fix fuzzer bug in SkGradientShader::MakeSweep

In this case, startAngle was NaN while endAngle was -NaN

Change-Id: Ic3498a6f08700437590eb219e2baf535db912cc2
Reviewed-on: https://skia-review.googlesource.com/139980
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
---
 src/shaders/gradients/SkGradientShader.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/shaders')

diff --git a/src/shaders/gradients/SkGradientShader.cpp b/src/shaders/gradients/SkGradientShader.cpp
index 1cbad4ac11..ff22cc598a 100644
--- a/src/shaders/gradients/SkGradientShader.cpp
+++ b/src/shaders/gradients/SkGradientShader.cpp
@@ -879,7 +879,7 @@ sk_sp<SkShader> SkGradientShader::MakeSweep(SkScalar cx, SkScalar cy,
     if (1 == colorCount) {
         return SkShader::MakeColorShader(colors[0], std::move(colorSpace));
     }
-    if (startAngle >= endAngle) {
+    if (!SkScalarIsFinite(startAngle) || !SkScalarIsFinite(endAngle) || startAngle >= endAngle) {
         return nullptr;
     }
     if (localMatrix && !localMatrix->invert(nullptr)) {
-- 
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