[core] fix style parsing crash when a layer's paint property is not an object

1 files changed, 3 insertions, 0 deletions

diff --git a/include/mbgl/style/conversion/layer.hpp b/include/mbgl/style/conversion/layer.hpp
index 1fe467165d..c694c3162a 100644
--- a/include/mbgl/style/conversion/layer.hpp
+++ b/include/mbgl/style/conversion/layer.hpp
@@ -43,6 +43,9 @@ optional<Error> setPaintProperties(Layer& layer, const V& value) {
     if (!paintValue) {
         return {};
     }
+    if (!isObject(*paintValue)) {
+        return { { "paint must be an object" } };
+    }
     return eachMember(*paintValue, [&] (const std::string& k, const V& v) {
         return setPaintProperty(layer, k, v);
     });