Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 3.14 17/29] crypto: ghash-clmulni: specify context size for ghash async algorithm | Date | Sat, 19 Sep 2015 10:27:39 -0700 |
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3.14-stable review patch. If anyone has any objections, please let me know.
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From: Andrey Ryabinin <aryabinin@odin.com>
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 <aryabinin@odin.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- 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 @@ -291,6 +291,7 @@ 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,
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