diff --git a/docs/changelog/3056.bugfix.rst b/docs/changelog/3056.bugfix.rst
new file mode 100644
index 000000000..eccf816a8
--- /dev/null
+++ b/docs/changelog/3056.bugfix.rst
@@ -0,0 +1 @@
+Fix hang and zombie process on interrupt (CTRL-C).
diff --git a/src/tox/execute/local_sub_process/__init__.py b/src/tox/execute/local_sub_process/__init__.py
index 4332da9a3..2f9c7c8df 100644
--- a/src/tox/execute/local_sub_process/__init__.py
+++ b/src/tox/execute/local_sub_process/__init__.py
@@ -63,6 +63,8 @@ def __init__(self, options: ExecuteOptions, out: SyncWrite, err: SyncWrite, proc
 
     @property
     def exit_code(self) -> int | None:
+        # need to poll here, to make sure the returncode we get is current
+        self._process.poll()
         return self._process.returncode
 
     def interrupt(self) -> None: