File _service:extract_file:0003-Prevent-double-free-... of Package cyrus-sasl

File _service:extract_file:0003-Prevent-double-free-of-RC4-context.patch of Package cyrus-sasl (Revision 786ae128a4c45d6097236655de6a4f83)

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From ca6c587cc9da51235b125a97e841fa786aaad7ff Mon Sep 17 00:00:00 2001
From: Simo Sorce <simo@redhat.com>
Date: Tue, 16 Apr 2019 10:18:43 -0400
Subject: [PATCH 3/3] Prevent double free of RC4 context

Signed-off-by: Simo Sorce <simo@redhat.com>
---
 plugins/digestmd5.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/plugins/digestmd5.c b/plugins/digestmd5.c
index f184c16..df35093 100644
--- a/plugins/digestmd5.c
+++ b/plugins/digestmd5.c
@@ -1224,8 +1224,14 @@ static void free_rc4(context_t *text)
 {
     /* free rc4 context structures */
 
-    if(text->cipher_enc_context) text->utils->free(text->cipher_enc_context);
-    if(text->cipher_dec_context) text->utils->free(text->cipher_dec_context);
+    if (text->cipher_enc_context) {
+        text->utils->free(text->cipher_enc_context);
+        text->cipher_enc_context = NULL;
+    }
+    if (text->cipher_dec_context) {
+        text->utils->free(text->cipher_dec_context);
+        text->cipher_dec_context = NULL;
+    }
 }
 
 static int init_rc4(context_t *text, 
-- 
2.7.4