From: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Date: Fri, 25 Jan 2013 14:54:20 +0000 (+0200)
Subject: digsig: Fix memory leakage in digsig_verify_rsa()
X-Git-Tag: upstream/snapshot3+hdmi~5793
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7810cc1e7721220f1ed2a23ca95113d6434f6dcd;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

digsig: Fix memory leakage in digsig_verify_rsa()

digsig_verify_rsa() does not free kmalloc'ed buffer returned by
mpi_get_buffer().

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: James Morris <james.l.morris@oracle.com>
---

diff --git a/lib/digsig.c b/lib/digsig.c
index 8c0e629..dc2be7e 100644
--- a/lib/digsig.c
+++ b/lib/digsig.c
@@ -162,6 +162,8 @@ static int digsig_verify_rsa(struct key *key,
 	memset(out1, 0, head);
 	memcpy(out1 + head, p, l);
 
+	kfree(p);
+
 	err = pkcs_1_v1_5_decode_emsa(out1, len, mblen, out2, &len);
 	if (err)
 		goto err;