1 files changed, 13 insertions, 0 deletions
diff --git a/layout/mathml/crashtests/323741-1.xml b/layout/mathml/crashtests/323741-1.xml
new file mode 100644
index 000000000..8527c1a78
--- /dev/null
+++ b/layout/mathml/crashtests/323741-1.xml
@@ -0,0 +1,13 @@
+<html xmlns="http://www.w3.org/1999/xhtml">
+  <div>
+    <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline">
+      <notin>
+        <mspace>
+          <mfenced />
+        </mspace>
+
+        f
+      </notin>
+    </math>
+  </div>
+</html>
+\ No newline at end of file