From 570e371fd6e8615ece9b9e21fbe77149ebeb172e Mon Sep 17 00:00:00 2001
From: Zackery Spytz <zspytz@gmail.com>
Date: Mon, 5 Nov 2018 12:26:40 -0700
Subject: [PATCH] Fix possible crashes in pwdmodule.c. (GH-10331)

"p" was not initialized if the first PyMem_RawRealloc() call failed.
---
 Modules/pwdmodule.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Modules/pwdmodule.c b/Modules/pwdmodule.c
index 1286e7d5ce5..fd11f848b2c 100644
--- a/Modules/pwdmodule.c
+++ b/Modules/pwdmodule.c
@@ -145,6 +145,7 @@ pwd_getpwuid(PyObject *module, PyObject *uidobj)
     while(1) {
         buf2 = PyMem_RawRealloc(buf, bufsize);
         if (buf2 == NULL) {
+            p = NULL;
             nomem = 1;
             break;
         }
@@ -227,6 +228,7 @@ pwd_getpwnam_impl(PyObject *module, PyObject *name)
     while(1) {
         buf2 = PyMem_RawRealloc(buf, bufsize);
         if (buf2 == NULL) {
+            p = NULL;
             nomem = 1;
             break;
         }