From: Stefan Eissing <stefan@eissing.org>
Date: Mon, 13 Oct 2025 09:32:17 +0000 (+0200)
Subject: socks_sspi: use the correct free function
X-Git-Tag: rc-8_17_0-3~140
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1d01d4975f540f3a363b38e1296aead62130fc6d;p=thirdparty%2Fcurl.git

socks_sspi: use the correct free function

When freeing buffers allocated by SSPI, use its own function, not free().

Reported-by: Joshua Rogers
Closes #19046
---

diff --git a/lib/socks_sspi.c b/lib/socks_sspi.c
index 54049e8c99..1077019b11 100644
--- a/lib/socks_sspi.c
+++ b/lib/socks_sspi.c
@@ -590,9 +590,12 @@ error:
     Curl_pSecFn->FreeContextBuffer(sspi_send_token.pvBuffer);
   if(names.sUserName)
     Curl_pSecFn->FreeContextBuffer(names.sUserName);
-  free(sspi_w_token[0].pvBuffer);
-  free(sspi_w_token[1].pvBuffer);
-  free(sspi_w_token[2].pvBuffer);
+  if(sspi_w_token[0].pvBuffer)
+    Curl_pSecFn->FreeContextBuffer(sspi_w_token[0].pvBuffer);
+  if(sspi_w_token[1].pvBuffer)
+    Curl_pSecFn->FreeContextBuffer(sspi_w_token[1].pvBuffer);
+  if(sspi_w_token[2].pvBuffer)
+    Curl_pSecFn->FreeContextBuffer(sspi_w_token[2].pvBuffer);
   free(etbuf);
   return result;
 }