From 6c09192e905eafa1d714f0df292239b46e097fc5 Mon Sep 17 00:00:00 2001
From: Pablo Galindo <pablogsal@gmail.com>
Date: Fri, 23 Aug 2024 13:07:40 +0100
Subject: [PATCH] gh-123229: Fix valgrind warning by initializing the f-string
 buffers to 0 in the tokenizer

---
 Parser/lexer/state.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Parser/lexer/state.c b/Parser/lexer/state.c
index 647f291911564c4..1665debea30b301 100644
--- a/Parser/lexer/state.c
+++ b/Parser/lexer/state.c
@@ -12,7 +12,8 @@
 struct tok_state *
 _PyTokenizer_tok_new(void)
 {
-    struct tok_state *tok = (struct tok_state *)PyMem_Malloc(
+    struct tok_state *tok = (struct tok_state *)PyMem_Calloc(
+                                            1,
                                             sizeof(struct tok_state));
     if (tok == NULL)
         return NULL;