1 files changed, 1 insertions, 0 deletions
diff --git a/ext/dl/sym.c b/ext/dl/sym.c
index 01e0474f58..933fb7f4f0 100644
--- a/ext/dl/sym.c
+++ b/ext/dl/sym.c
@@ -492,6 +492,7 @@ rb_dlsym_call(int argc, VALUE argv[], VALUE self)
 	      rb_raise(rb_eDLTypeError, "unexpected type of argument #%d", i);
 	    }
 	  }
+	  rb_check_safe_obj(pval);
 	  Data_Get_Struct(pval, struct ptr_data, data);
 	  ANY2P(args[i]) = DLVOIDP(data->ptr);
 	}