This is a note to let you know that I've just added the patch titled
crypto: ghash-clmulni: specify context size for ghash async algorithm
to the 4.2-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-ghash-clmulni-specify-context-size-for-ghash-async-algorithm.patch
and it can be found in the queue-4.2 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 71c6da846be478a61556717ef1ee1cea91f5d6a8 Mon Sep 17 00:00:00 2001
From: Andrey Ryabinin <[email protected]>
Date: Thu, 3 Sep 2015 14:32:01 +0300
Subject: crypto: ghash-clmulni: specify context size for ghash async algorithm
From: Andrey Ryabinin <[email protected]>
commit 71c6da846be478a61556717ef1ee1cea91f5d6a8 upstream.
Currently context size (cra_ctxsize) doesn't specified for
ghash_async_alg. Which means it's zero. Thus crypto_create_tfm()
doesn't allocate needed space for ghash_async_ctx, so any
read/write to ctx (e.g. in ghash_async_init_tfm()) is not valid.
Signed-off-by: Andrey Ryabinin <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
arch/x86/crypto/ghash-clmulni-intel_glue.c | 1 +
1 file changed, 1 insertion(+)
--- a/arch/x86/crypto/ghash-clmulni-intel_glue.c
+++ b/arch/x86/crypto/ghash-clmulni-intel_glue.c
@@ -294,6 +294,7 @@ static struct ahash_alg ghash_async_alg
.cra_name = "ghash",
.cra_driver_name = "ghash-clmulni",
.cra_priority = 400,
+ .cra_ctxsize = sizeof(struct
ghash_async_ctx),
.cra_flags = CRYPTO_ALG_TYPE_AHASH |
CRYPTO_ALG_ASYNC,
.cra_blocksize = GHASH_BLOCK_SIZE,
.cra_type = &crypto_ahash_type,
Patches currently in stable-queue which might be from [email protected] are
queue-4.2/crypto-ghash-clmulni-specify-context-size-for-ghash-async-algorithm.patch
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