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 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-mcryptd-pass-through-absence-of-setkey.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 <stable@xxxxxxxxxxxxxxx> know about it.
>From fa59b92d299f2787e6bae1ff078ee0982e80211f Mon Sep 17 00:00:00 2001
From: Eric Biggers <ebiggers@xxxxxxxxxx>
Date: Wed, 3 Jan 2018 11:16:24 -0800
Subject: crypto: mcryptd - pass through absence of ->setkey()
From: Eric Biggers <ebiggers@xxxxxxxxxx>
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@xxxxxxxxxx>
Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
crypto/mcryptd.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/crypto/mcryptd.c
+++ b/crypto/mcryptd.c
@@ -514,7 +514,8 @@ 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@xxxxxxxxxx are
queue-3.18/crypto-cryptd-pass-through-absence-of-setkey.patch
queue-3.18/keys-encrypted-fix-buffer-overread-in-valid_master_desc.patch
queue-3.18/crypto-hash-introduce-crypto_hash_alg_has_setkey.patch
queue-3.18/crypto-mcryptd-pass-through-absence-of-setkey.patch