From b946f529efb4a623ac4ad968d8091edb81ebdcdb Mon Sep 17 00:00:00 2001
From: Honglin Zhu <zhuhonglin.zhl@alibaba-inc.com>
Date: Thu, 28 Jul 2022 18:00:34 +0800
Subject: [PATCH] gh-95355: Check tokens[0] after allocating memory (GH-95356)
#95355
Automerge-Triggered-By: GH:pablogsal
---
.../2022-07-28-08-33-31.gh-issue-95355.yN4XVk.rst | 1 +
Parser/pegen.c | 2 +-
2 files changed, 2 insertions(+), 1 deletion(-)
create mode 100644 Misc/NEWS.d/next/Core and Builtins/2022-07-28-08-33-31.gh-issue-95355.yN4XVk.rst
diff --git a/Misc/NEWS.d/next/Core and Builtins/2022-07-28-08-33-31.gh-issue-95355.yN4XVk.rst b/Misc/NEWS.d/next/Core and Builtins/2022-07-28-08-33-31.gh-issue-95355.yN4XVk.rst
new file mode 100644
index 00000000000..6a289991e0d
--- /dev/null
+++ b/Misc/NEWS.d/next/Core and Builtins/2022-07-28-08-33-31.gh-issue-95355.yN4XVk.rst
@@ -0,0 +1 @@
+``_PyPegen_Parser_New`` now properly detects token memory allocation errors. Patch by Honglin Zhu.
diff --git a/Parser/pegen.c b/Parser/pegen.c
index dbf105aedcf..31e3ec05a10 100644
--- a/Parser/pegen.c
+++ b/Parser/pegen.c
@@ -738,7 +738,7 @@ _PyPegen_Parser_New(struct tok_state *tok, int start_rule, int flags,
return (Parser *) PyErr_NoMemory();
}
p->tokens[0] = PyMem_Calloc(1, sizeof(Token));
- if (!p->tokens) {
+ if (!p->tokens[0]) {
PyMem_Free(p->tokens);
PyMem_Free(p);
return (Parser *) PyErr_NoMemory();
--
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