From 1aef13c0bdb907ac55fbcc9ba69abc86e1921324 Mon Sep 17 00:00:00 2001
From: Vinz2008 <vincentbidarddelanoe@gmail.com>
Date: Thu, 10 Nov 2022 18:36:44 +0100
Subject: apps/speed.c: add verifying if fdopen returns NULL

Reviewed-by: Todd Short <todd.short@me.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19651)

(cherry picked from commit c9a542e41837ea65671dcd75c448d7113d34a4fd)
---
 apps/speed.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/apps/speed.c b/apps/speed.c
index d180a41f36..d1a0ddf6e9 100644
--- a/apps/speed.c
+++ b/apps/speed.c
@@ -3456,7 +3456,11 @@ static int do_multi(int multi, int size_num)
         char buf[1024];
         char *p;
 
-        f = fdopen(fds[n], "r");
+        if ((f = fdopen(fds[n], "r")) == NULL) {
+            BIO_printf(bio_err, "fdopen failure with 0x%x\n",
+                       errno);
+            return 1;
+        }
         while (fgets(buf, sizeof(buf), f)) {
             p = strchr(buf, '\n');
             if (p)
-- 
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