From e6c5613ea88b5587b3b8602c1f20c80f00f40fe5 Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Sat, 26 Dec 2020 16:20:54 +0100
Subject: tool_operate: avoid NULL dereference of first_arg

Follow-up to 6a5e020d4d2b04a
Identified by OSS-Fuzz
Bug: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28999
Closes #6377
---
 src/tool_operate.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/tool_operate.c b/src/tool_operate.c
index 5635483d1..15e82b4bd 100644
--- a/src/tool_operate.c
+++ b/src/tool_operate.c
@@ -2539,7 +2539,7 @@ CURLcode operate(struct GlobalConfig *global, int argc, argv_item_t argv[])
 
   /* Parse .curlrc if necessary */
   if((argc == 1) ||
-     (strncmp(first_arg, "-q", 2) &&
+     (first_arg && strncmp(first_arg, "-q", 2) &&
       !curl_strequal(first_arg, "--disable"))) {
     parseconfig(NULL, global); /* ignore possible failure */
 
-- 
cgit v1.2.1