https://github.com/python/cpython/commit/724c7c8146f44a7c737ec4588a1ee4b9db994f6f
commit: 724c7c8146f44a7c737ec4588a1ee4b9db994f6f
branch: main
author: Victor Stinner <[email protected]>
committer: vstinner <[email protected]>
date: 2026-03-18T18:20:35+01:00
summary:
gh-146093: Fix csv _set_str(): check if PyUnicode_DecodeASCII() failed (#146113)
The function can fail on a memory allocation failure.
Bug reported by devdanzin.
files:
M Modules/_csv.c
diff --git a/Modules/_csv.c b/Modules/_csv.c
index c48f44c0f07867..a3f840acbe8c0b 100644
--- a/Modules/_csv.c
+++ b/Modules/_csv.c
@@ -315,8 +315,12 @@ _set_char(const char *name, Py_UCS4 *target, PyObject
*src, Py_UCS4 dflt)
static int
_set_str(const char *name, PyObject **target, PyObject *src, const char *dflt)
{
- if (src == NULL)
+ if (src == NULL) {
*target = PyUnicode_DecodeASCII(dflt, strlen(dflt), NULL);
+ if (*target == NULL) {
+ return -1;
+ }
+ }
else {
if (!PyUnicode_Check(src)) {
PyErr_Format(PyExc_TypeError,
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