Patch "crypto: talitos - Extend max key length for SHA384/512-HMAC and AEAD" has been added to the 3.18-stable tree

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

crypto: talitos - Extend max key length for SHA384/512-HMAC and AEAD

to the 3.18-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-talitos-extend-max-key-length-for-sha384-512-hmac-and-aead.patch

and it can be found in the queue-3.18 subdirectory.

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

From: Martin Hicks <[email protected]>
Date: Tue, 2 May 2017 09:38:35 -0400
Subject: crypto: talitos - Extend max key length for SHA384/512-HMAC and AEAD
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From: Martin Hicks <[email protected]>

commit 03d2c5114c95797c0aa7d9f463348b171a274fd4 upstream.

An updated patch that also handles the additional key length requirements for the AEAD algorithms.

The max keysize is not 96. For SHA384/512 it's 128, and for the AEAD algorithms it's longer still. Extend the max keysize for the AEAD size for AES256 + HMAC(SHA512).

---
 drivers/crypto/talitos.c |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

@@ -634,7 +634,7 @@ static void talitos_unregister_rng(struc
  * crypto alg
  */
 #define TALITOS_CRA_PRIORITY		3000
-#define TALITOS_MAX_KEY_SIZE		96
+#define TALITOS_MAX_KEY_SIZE		(AES_MAX_KEY_SIZE + SHA512_BLOCK_SIZE)
 #define TALITOS_MAX_IV_LENGTH		16 /* max of AES_BLOCK_SIZE, DES3_EDE_BLOCK_SIZE */
 
 #define MD5_BLOCK_SIZE    64

@@ -1324,6 +1324,11 @@ static int ablkcipher_setkey(struct cryp
 {
 	struct talitos_ctx *ctx = crypto_ablkcipher_ctx(cipher);
 
+	if (keylen > TALITOS_MAX_KEY_SIZE) {
+		crypto_ablkcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
+		return -EINVAL;
+	}
+
 	memcpy(&ctx->key, key, keylen);
 	ctx->keylen = keylen;
 

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

queue-3.18/crypto-talitos-extend-max-key-length-for-sha384-512-hmac-and-aead.patch