From: x2018 <xkernel.wang@foxmail.com>
Date: Sun, 2 Nov 2025 05:28:34 +0000 (+0800)
Subject: http_aws_sigv4: check the return value of curl_maprintf()
X-Git-Tag: curl-8_17_0~28
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=c898da26c6fc107ba090e5af28f066f51ecbc296;p=thirdparty%2Fcurl.git

http_aws_sigv4: check the return value of curl_maprintf()

Closes #9328
---

diff --git a/lib/http_aws_sigv4.c b/lib/http_aws_sigv4.c
index f592f3844f..bb88a0f8ce 100644
--- a/lib/http_aws_sigv4.c
+++ b/lib/http_aws_sigv4.c
@@ -329,6 +329,8 @@ static CURLcode make_headers(struct Curl_easy *data,
       goto fail;
     head = tmp_head;
     *date_header = curl_maprintf("%s: %s\r\n", date_hdr_key, timestamp);
+    if(!*date_header)
+      goto fail;
   }
   else {
     const char *value;