From: <gregkh@linuxfoundation.org>
To: christophe.leroy@c-s.fr, gregkh@linuxfoundation.org,
herbert@gondor.apana.org.au
Cc: <stable@vger.kernel.org>, <stable-commits@vger.kernel.org>
Subject: Patch "crypto: talitos - fix setkey to check key weakness" has been added to the 4.14-stable tree
Date: Tue, 12 Dec 2017 09:31:08 +0100 [thread overview]
Message-ID: <1513067468238119@kroah.com> (raw)
This is a note to let you know that I've just added the patch titled
crypto: talitos - fix setkey to check key weakness
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-talitos-fix-setkey-to-check-key-weakness.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 <stable@vger.kernel.org> know about it.
>From f384cdc4faf350fdb6ad93c5f26952b9ba7c7566 Mon Sep 17 00:00:00 2001
From: LEROY Christophe <christophe.leroy@c-s.fr>
Date: Fri, 6 Oct 2017 15:04:37 +0200
Subject: crypto: talitos - fix setkey to check key weakness
From: LEROY Christophe <christophe.leroy@c-s.fr>
commit f384cdc4faf350fdb6ad93c5f26952b9ba7c7566 upstream.
Crypto manager test report the following failures:
[ 3.061081] alg: skcipher: setkey failed on test 5 for ecb-des-talitos: flags=100
[ 3.069342] alg: skcipher-ddst: setkey failed on test 5 for ecb-des-talitos: flags=100
[ 3.077754] alg: skcipher-ddst: setkey failed on test 5 for ecb-des-talitos: flags=100
This is due to setkey being expected to detect weak keys.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/crypto/talitos.c | 8 ++++++++
1 file changed, 8 insertions(+)
--- a/drivers/crypto/talitos.c
+++ b/drivers/crypto/talitos.c
@@ -1507,12 +1507,20 @@ static int ablkcipher_setkey(struct cryp
const u8 *key, unsigned int keylen)
{
struct talitos_ctx *ctx = crypto_ablkcipher_ctx(cipher);
+ u32 tmp[DES_EXPKEY_WORDS];
if (keylen > TALITOS_MAX_KEY_SIZE) {
crypto_ablkcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
return -EINVAL;
}
+ if (unlikely(crypto_ablkcipher_get_flags(cipher) &
+ CRYPTO_TFM_REQ_WEAK_KEY) &&
+ !des_ekey(tmp, key)) {
+ crypto_ablkcipher_set_flags(cipher, CRYPTO_TFM_RES_WEAK_KEY);
+ return -EINVAL;
+ }
+
memcpy(&ctx->key, key, keylen);
ctx->keylen = keylen;
Patches currently in stable-queue which might be from christophe.leroy@c-s.fr are
queue-4.14/crypto-talitos-fix-aead-for-sha224-on-non-sha224-capable-chips.patch
queue-4.14/crypto-talitos-fix-memory-corruption-on-sec2.patch
queue-4.14/crypto-talitos-fix-use-of-sg_link_tbl_len.patch
queue-4.14/crypto-talitos-fix-setkey-to-check-key-weakness.patch
queue-4.14/crypto-talitos-fix-aead-test-failures.patch
queue-4.14/crypto-talitos-fix-ctr-aes-talitos.patch
reply other threads:[~2017-12-12 8:31 UTC|newest]
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