From 3e0441520b9a349dc50662919ea18f03dfc0d624 Mon Sep 17 00:00:00 2001
From: x2018 <xkernel.wang@foxmail.com>
Date: Wed, 24 Nov 2021 11:26:09 +0800
Subject: [PATCH] check the return value of OPENSSL_strdup(CRYPTO_strdup) in
 apps/lib/app_rand.c:32

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/17124)
---
 apps/lib/app_rand.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/apps/lib/app_rand.c b/apps/lib/app_rand.c
index 1e10044acc..ad93858bfd 100644
--- a/apps/lib/app_rand.c
+++ b/apps/lib/app_rand.c
@@ -28,8 +28,14 @@ void app_RAND_load_conf(CONF *c, const char *section)
         BIO_printf(bio_err, "Can't load %s into RNG\n", randfile);
         ERR_print_errors(bio_err);
     }
-    if (save_rand_file == NULL)
+    if (save_rand_file == NULL) {
         save_rand_file = OPENSSL_strdup(randfile);
+        /* If some internal memory errors have occurred */
+        if (save_rand_file == NULL) {
+            BIO_printf(bio_err, "Can't duplicate %s\n", randfile);
+            ERR_print_errors(bio_err);
+        }
+    }
 }
 
 static int loadfiles(char *name)