diff --git a/src/gpu/ganesh/ops/DrawAtlasOp.cpp b/src/gpu/ganesh/ops/DrawAtlasOp.cpp
index 776587d3e29112187056939f4a7902b7174a1ad9..719d7fa0b8edd03e0fd53881a6939e061a3290b5 100644
--- a/src/gpu/ganesh/ops/DrawAtlasOp.cpp
+++ b/src/gpu/ganesh/ops/DrawAtlasOp.cpp
@@ -112,7 +112,7 @@ DrawAtlasOpImpl::DrawAtlasOpImpl(GrProcessorSet* processorSet, const SkPMColor4f
         : GrMeshDrawOp(ClassID()), fHelper(processorSet, aaType), fColor(color) {
     SkASSERT(xforms);
     SkASSERT(rects);
-
+    SkASSERT(spriteCount >= 0);
     fViewMatrix = viewMatrix;
     Geometry& installedGeo = fGeoData.push_back();
     installedGeo.fColor = color;
@@ -127,6 +127,11 @@ DrawAtlasOpImpl::DrawAtlasOpImpl(GrProcessorSet* processorSet, const SkPMColor4f
         vertexStride += sizeof(GrColor);
     }
 
+    // Bail out if we'd overflow from a really large draw
+    if (spriteCount > SK_MaxS32 / static_cast<int>(4 * vertexStride)) {
+        return;
+    }
+
     // Compute buffer size and alloc buffer
     fQuadCount = spriteCount;
     int allocSize = static_cast<int>(4 * vertexStride * spriteCount);