releases/2.6.25.3/crypto-eseqiv-fix-off-by-one-encryption.patch

From stable-bounces@linux.kernel.org Mon May  5 23:53:44 2008
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Tue, 06 May 2008 14:01:24 +0800
Subject: CRYPTO: eseqiv: Fix off-by-one encryption
To: stable@kernel.org
Message-ID: <E1JtGEu-0003xx-00@gondolin.me.apana.org.au>

From: Herbert Xu <herbert@gondor.apana.org.au>

[CRYPTO] eseqiv: Fix off-by-one encryption

[ Upstream commit: 46f8153cc59384eb09a426d044668d4801f818ce ]

After attaching the IV to the head during encryption, eseqiv does not
increase the encryption length by that amount.  As such the last block
of the actual plain text will be left unencrypted.

Fortunately the only user of this code hifn currently crashes so this
shouldn't affect anyone :)

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 crypto/eseqiv.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/crypto/eseqiv.c
+++ b/crypto/eseqiv.c
@@ -136,7 +136,8 @@ static int eseqiv_givencrypt(struct skci
 	}
 
 	ablkcipher_request_set_crypt(subreq, reqctx->src, dst,
-				     req->creq.nbytes, req->creq.info);
+				     req->creq.nbytes + ivsize,
+				     req->creq.info);
 
 	memcpy(req->creq.info, ctx->salt, ivsize);