1 files changed, 5 insertions, 0 deletions
diff --git a/tests/libqtest.c b/tests/libqtest.c
index 1d73fd1953..071b6be521 100644
--- a/tests/libqtest.c
+++ b/tests/libqtest.c
@@ -291,6 +291,11 @@ void qtest_qmp(QTestState *s, const char *fmt, ...)
             continue;
         }
 
+        if (len == -1 || len == 0) {
+            fprintf(stderr, "Broken pipe\n");
+            exit(1);
+        }
+
         switch (c) {
         case '{':
             nesting++;