diff --git a/src/gpu/ganesh/SurfaceContext.cpp b/src/gpu/ganesh/SurfaceContext.cpp
index 6eaa922ff4..9abd062ede 100644
--- a/src/gpu/ganesh/SurfaceContext.cpp
+++ b/src/gpu/ganesh/SurfaceContext.cpp
@@ -26,6 +26,7 @@
 #include "include/private/base/SkTemplates.h"
 #include "include/private/base/SkTo.h"
 #include "include/private/gpu/ganesh/GrTypesPriv.h"
+#include "src/base/SkSafeMath.h"
 #include "src/core/SkColorSpaceXformSteps.h"
 #include "src/core/SkMipmap.h"
 #include "src/core/SkTraceEvent.h"
@@ -275,8 +276,12 @@ bool SurfaceContext::readPixels(GrDirectContext* dContext, GrPixmap dst, SkIPoin
                             this->colorInfo().alphaType(),
                             this->colorInfo().refColorSpace(),
                             dst.dimensions());
-        size_t tmpRB = tmpInfo.minRowBytes();
-        size_t size = tmpRB * tmpInfo.height();
+        SkSafeMath safe;
+        size_t tmpRB = safe.mul(tmpInfo.bpp(), tmpInfo.width());
+        size_t size = safe.mul(tmpRB, tmpInfo.height());
+        if (!safe.ok()) {
+            return false;
+        }
         // Chrome MSAN bots require the data to be initialized (hence the ()).
         tmpPixels = std::make_unique<char[]>(size);
         tmp = {tmpInfo, tmpPixels.get(), tmpRB};