From: Daniel Stenberg <daniel@haxx.se>
Date: Fri, 1 Sep 2023 08:35:40 +0000 (+0200)
Subject: awssiv4: avoid freeing the date pointer on error
X-Git-Tag: curl-8_3_0~58
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b8dabfb1e1ec98b0d5be9369fc9a9c4b44b2c8cf;p=thirdparty%2Fcurl.git

awssiv4: avoid freeing the date pointer on error

Since it was not allocated, don't free it even if it was wrong syntax

Bug: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=61908

Follow-up to b137634ba3adb

Closes #11782
---

diff --git a/lib/http_aws_sigv4.c b/lib/http_aws_sigv4.c
index 3abfb096a2..686d26837d 100644
--- a/lib/http_aws_sigv4.c
+++ b/lib/http_aws_sigv4.c
@@ -220,8 +220,10 @@ static CURLcode make_headers(struct Curl_easy *data,
     char *value;
 
     value = strchr(*date_header, ':');
-    if(!value)
+    if(!value) {
+      *date_header = NULL;
       goto fail;
+    }
     ++value;
     while(ISBLANK(*value))
       ++value;