Merge "Fix NULL deref on exec-in with insufficient arguments"

am: 245e4dbfd4

* commit '245e4dbfd459f63bad100b09bd58e3931924e16f':
  Fix NULL deref on exec-in with insufficient arguments

Change-Id: I386257b6c30c4f02e161e2b0a827e73eca9d229e

adb/commandline.cpp

@@ -1613,6 +1613,11 @@ int adb_commandline(int argc, const char **argv) {
     else if (!strcmp(argv[0], "exec-in") || !strcmp(argv[0], "exec-out")) {
         int exec_in = !strcmp(argv[0], "exec-in");
 
+        if (argc < 2) {
+            fprintf(stderr, "Usage: adb %s command\n", argv[0]);
+            return 1;
+        }
+
         std::string cmd = "exec:";
         cmd += argv[1];
         argc -= 2;