Fix possible dereference of begin() iterator when std::vector is empty (

#460)
openthread · Feb 18, 2020 · 5157992 · 5157992
1 parent cf3d099
commit 5157992
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/src/util/Data.h b/src/util/Data.h
@@ -59,11 +59,11 @@ class Data : public std::vector<uint8_t> {
 	}
 
 	uint8_t* data() {
-		return &*begin();
+		return empty() ? NULL : &*begin();
 	}
 
 	const uint8_t* data() const {
-		return &*begin();
+		return empty() ? NULL : &*begin();
 	}
 };
 };