diff --git a/ipykernel/kernelbase.py b/ipykernel/kernelbase.py
index a2991aea1..8c808566c 100644
--- a/ipykernel/kernelbase.py
+++ b/ipykernel/kernelbase.py
@@ -867,6 +867,7 @@ def _input_request(self, prompt, ident, parent, password=False):
         # Flush output before making the request.
         sys.stderr.flush()
         sys.stdout.flush()
+
         # flush the stdin socket, to purge stale replies
         while True:
             try:
@@ -885,14 +886,25 @@ def _input_request(self, prompt, ident, parent, password=False):
         # Await a response.
         while True:
             try:
-                ident, reply = self.session.recv(self.stdin_socket, 0)
-            except Exception:
-                self.log.warning("Invalid Message:", exc_info=True)
+                # Use polling with select() so KeyboardInterrupts can get
+                # through; doing a blocking recv() means stdin reads are
+                # uninterruptible on Windows. We need a timeout because
+                # zmq.select() is also uninterruptible, but at least this
+                # way reads get noticed immediately and KeyboardInterrupts
+                # get noticed fairly quickly by human response time standards.
+                rlist, _, xlist = zmq.select(
+                    [self.stdin_socket], [], [self.stdin_socket], 0.01
+                )
+                if rlist or xlist:
+                    ident, reply = self.session.recv(self.stdin_socket)
+                    if (ident, reply) != (None, None):
+                        break
             except KeyboardInterrupt:
                 # re-raise KeyboardInterrupt, to truncate traceback
                 raise KeyboardInterrupt("Interrupted by user") from None
-            else:
-                break
+            except Exception as e:
+                self.log.warning("Invalid Message:", exc_info=True)
+        
         try:
             value = py3compat.unicode_to_str(reply['content']['value'])
         except:
diff --git a/ipykernel/tests/test_kernel.py b/ipykernel/tests/test_kernel.py
index 219ded2d3..239f957f3 100644
--- a/ipykernel/tests/test_kernel.py
+++ b/ipykernel/tests/test_kernel.py
@@ -330,3 +330,21 @@ def test_shutdown():
             else:
                 break
         assert not km.is_alive()
+
+
+def test_interrupt_during_input():
+    """
+    The kernel exits after being interrupted while waiting in input().
+    
+    input() appears to have issues other functions don't, and it needs to be
+    interruptible in order for pdb to be interruptible.
+    """
+    with new_kernel() as kc:
+        km = kc.parent
+        msg_id = kc.execute("input()")
+        time.sleep(1)  # Make sure it's actually waiting for input.
+        km.interrupt_kernel()
+        # If we failed to interrupt interrupt, this will timeout:
+        reply = kc.get_shell_msg(timeout=TIMEOUT)
+        from .test_message_spec import validate_message
+        validate_message(reply, 'execute_reply', msg_id)