From: Daniel Stenberg <daniel@haxx.se>
Date: Fri, 13 Dec 2019 16:45:21 +0000 (+0100)
Subject: multi: free sockhash on OOM
X-Git-Tag: curl-7_68_0~61
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=29ca9fc596c808c0ea716681af4743914f4003f5;p=thirdparty%2Fcurl.git

multi: free sockhash on OOM

This would otherwise leak memory in the error path.

Detected by torture test 1540.

Closes #4713
---

diff --git a/lib/multi.c b/lib/multi.c
index cc11ea6176..6d819b4aaa 100755
--- a/lib/multi.c
+++ b/lib/multi.c
@@ -260,6 +260,7 @@ static struct Curl_sh_entry *sh_addentry(struct curl_hash *sh,
 
   /* make/add new hash entry */
   if(!Curl_hash_add(sh, (char *)&s, sizeof(curl_socket_t), check)) {
+    Curl_hash_destroy(&check->transfers);
     free(check);
     return NULL; /* major failure */
   }