commit d438815e853d68ee989c16233dc334cdc3871241
author Brian Salomon <bsalomon@google.com> Mon Jul 26 15:18:40 2021 -0400
committer SkCQ <skcq-be@skia-corp.google.com.iam.gserviceaccount.com> Mon Jul 26 20:54:17 2021 +0000
tree a16c88771224cc83a09f4017ca8c57f31b132e3b
parent bd7278a2ba0f9ece07a3fd6429fa73e967c906f6

Protect against div-by-zero in GrSmallPathRenderer::onCanDrawPath

Bug: oss-fuzz:33865
Change-Id: I769e28ace7a61a5a1053777ce8270365975620c5
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/433136
Commit-Queue: Brian Salomon <bsalomon@google.com>
Commit-Queue: Jim Van Verth <jvanverth@google.com>
Auto-Submit: Brian Salomon <bsalomon@google.com>
Reviewed-by: Jim Van Verth <jvanverth@google.com>

src/gpu/ops/GrSmallPathRenderer.cpp

diff --git a/src/gpu/ops/GrSmallPathRenderer.cpp b/src/gpu/ops/GrSmallPathRenderer.cpp
index 8bf06cd..295cbc27 100644
--- a/src/gpu/ops/GrSmallPathRenderer.cpp
+++ b/src/gpu/ops/GrSmallPathRenderer.cpp
@@ -72,7 +72,7 @@
         return CanDrawPath::kNo;
     }
     // For affine transformations, too much shear can produce artifacts.
-    if (scaleFactors[1]/scaleFactors[0] > 4) {
+    if (!scaleFactors[0] || scaleFactors[1]/scaleFactors[0] > 4) {
         return CanDrawPath::kNo;
     }
     // Only support paths with bounds within kMaxDim by kMaxDim,