This is a note to let you know that I've just added the patch titled
crypto: mcryptd - pass through absence of ->setkey()
to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
The filename of the patch is: crypto-mcryptd-pass-through-absence-of-setkey.patch and it can be found in the queue-4.9 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 fa59b92d299f2787e6bae1ff078ee0982e80211f Mon Sep 17 00:00:00 2001
From: Eric Biggers ebiggers@google.com Date: Wed, 3 Jan 2018 11:16:24 -0800 Subject: crypto: mcryptd - pass through absence of ->setkey()
From: Eric Biggers ebiggers@google.com
commit fa59b92d299f2787e6bae1ff078ee0982e80211f upstream.
When the mcryptd template is used to wrap an unkeyed hash algorithm, don't install a ->setkey() method to the mcryptd instance. This change is necessary for mcryptd to keep working with unkeyed hash algorithms once we start enforcing that ->setkey() is called when present.
Signed-off-by: Eric Biggers ebiggers@google.com Signed-off-by: Herbert Xu herbert@gondor.apana.org.au Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- crypto/mcryptd.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/crypto/mcryptd.c +++ b/crypto/mcryptd.c @@ -534,7 +534,8 @@ static int mcryptd_create_hash(struct cr inst->alg.finup = mcryptd_hash_finup_enqueue; inst->alg.export = mcryptd_hash_export; inst->alg.import = mcryptd_hash_import; - inst->alg.setkey = mcryptd_hash_setkey; + if (crypto_hash_alg_has_setkey(halg)) + inst->alg.setkey = mcryptd_hash_setkey; inst->alg.digest = mcryptd_hash_digest_enqueue;
err = ahash_register_instance(tmpl, inst);
Patches currently in stable-queue which might be from ebiggers@google.com are
queue-4.9/crypto-cryptd-pass-through-absence-of-setkey.patch queue-4.9/crypto-hash-prevent-using-keyed-hashes-without-setting-key.patch queue-4.9/nfs-reject-request-for-id_legacy-key-without-auxdata.patch queue-4.9/crypto-poly1305-remove-setkey-method.patch queue-4.9/crypto-hash-introduce-crypto_hash_alg_has_setkey.patch queue-4.9/crypto-mcryptd-pass-through-absence-of-setkey.patch