From 392bff4abf6b177d0770bcb26e43ae5d7addd7c9 Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Sat, 4 Jan 2020 21:40:49 +0100
Subject: curl: properly free mimepost data

... as it could otherwise leak memory when a transfer failed.

Added test 1293 to verify.

Reported-by: Brian Carpenter
Fixes #4781
Closes #4782
---
 src/tool_operate.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src')

diff --git a/src/tool_operate.c b/src/tool_operate.c
index 9dc59b2e9..2bee9349a 100644
--- a/src/tool_operate.c
+++ b/src/tool_operate.c
@@ -1357,6 +1357,9 @@ static CURLcode single_transfer(struct GlobalConfig *global,
                     config->postfieldsize);
           break;
         case HTTPREQ_MIMEPOST:
+          /* free previous remainders */
+          curl_mime_free(config->mimepost);
+          config->mimepost = NULL;
           result = tool2curlmime(curl, config->mimeroot, &config->mimepost);
           if(result)
             break;
-- 
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