From: Jeffy Chen <jeffy.chen@rock-chips.com>
Date: Wed, 27 Sep 2017 12:28:57 +0000 (+0800)
Subject: dm crypt: fix memory leak in crypt_ctr_cipher_old()
X-Git-Tag: v4.13.6~18
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c284a72869fe25a20c214d68c08f92b0f3e4e8ce;p=thirdparty%2Fkernel%2Fstable.git

dm crypt: fix memory leak in crypt_ctr_cipher_old()

commit bd86e32059526e2d0d13ca1e4447dfbbddb6e5cc upstream.

Fix memory leak of cipher_api.

Fixes: 33d2f09fcb35 (dm crypt: introduce new format of cipher with "capi:" prefix)
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index cefc27abaad8a..e3dd64a12f554 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -2470,6 +2470,7 @@ static int crypt_ctr_cipher_old(struct dm_target *ti, char *cipher_in, char *key
 		kfree(cipher_api);
 		return ret;
 	}
+	kfree(cipher_api);
 
 	return 0;
 bad_mem: