Patch "crypto: x86/cast5-avx - fix ECB encryption when long sg follows short one" has been added to the 4.14-stable tree

This is a note to let you know that I've just added the patch titled

crypto: x86/cast5-avx - fix ECB encryption when long sg follows short one

to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
crypto-x86-cast5-avx-fix-ecb-encryption-when-long-sg-follows-short-one.patch
and it can be found in the queue-4.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Eric Biggers <[email protected]>
Date: Mon, 19 Feb 2018 23:48:12 -0800
Subject: crypto: x86/cast5-avx - fix ECB encryption when long sg follows short one

From: Eric Biggers <[email protected]>

commit 8f461b1e02ed546fbd0f11611138da67fd85a30f upstream.

With ecb-cast5-avx, if a 128+ byte scatterlist element followed a shorter one, then the algorithm accidentally encrypted/decrypted only 8 bytes instead of the expected 128 bytes. Fix it by setting the encryption/decryption 'fn' correctly.

---
 arch/x86/crypto/cast5_avx_glue.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

@@ -66,8 +66,6 @@ static int ecb_crypt(struct blkcipher_de
 	void (*fn)(struct cast5_ctx *ctx, u8 *dst, const u8 *src);
 	int err;
 
-	fn = (enc) ? cast5_ecb_enc_16way : cast5_ecb_dec_16way;
-
 	err = blkcipher_walk_virt(desc, walk);
 	desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
 

@@ -79,6 +77,7 @@ static int ecb_crypt(struct blkcipher_de
 
 		/* Process multi-block batch */
 		if (nbytes >= bsize * CAST5_PARALLEL_BLOCKS) {
+			fn = (enc) ? cast5_ecb_enc_16way : cast5_ecb_dec_16way;
 			do {
 				fn(ctx, wdst, wsrc);
 

Patches currently in stable-queue which might be from [email protected] are

queue-4.14/crypto-x86-cast5-avx-fix-ecb-encryption-when-long-sg-follows-short-one.patch