From: Alexander Strakh <strakh@ispras.ru>
Date: Tue, 1 Sep 2009 17:02:24 +0000 (+0000)
Subject: [CIFS] Memory leak in ntlmv2 hash calculation
X-Git-Tag: upstream/snapshot3+hdmi~17669^2~7
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=1b3859bc9e20d764316346665fc93ecea2d2b176;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

[CIFS] Memory leak in ntlmv2 hash calculation

 in function calc_ntlmv2_hash memory is not released.
1. If in the line 333 we successfully allocate memory and assign it to
pctxt variable:
       pctxt = kmalloc(sizeof(struct HMACMD5Context), GFP_KERNEL);
then we go to line 376 and exit wihout releasing memory pointed to by pctxt
variable.

Add a memory  releasing for pctxt variable before exit from function
calc_ntlmv2_hash.

Signed-off-by: Alexander Strakh <strakh@ispras.ru>
Signed-off-by: Steve French <sfrench@us.ibm.com>
---

diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c
index 7c98095..7efe174 100644
--- a/fs/cifs/cifsencrypt.c
+++ b/fs/cifs/cifsencrypt.c
@@ -373,6 +373,7 @@ calc_exit_2:
 	   compare with the NTLM example */
 	hmac_md5_final(ses->server->ntlmv2_hash, pctxt);
 
+	kfree(pctxt);
 	return rc;
 }