On Fri, 09 Oct 2015 11:48:49 +0100
Russell King <rmk+ker...@arm.linux.org.uk> (by way of Thomas Petazzoni
<thomas.petazz...@free-electrons.com>) wrote:
> Several of the algorithms in marvell/hash.c have a statesize of zero.
> When an AF_ALG accept() on an already-accepted file descriptor to
> calls into hash_accept(), this causes:
>
> char state[crypto_ahash_statesize(crypto_ahash_reqtfm(req))];
>
> to be zero-sized, but we still pass this to:
>
> err = crypto_ahash_export(req, state);
>
> which proceeds to write to 'state' as if it was a "struct md5_state",
> "struct sha1_state" etc. Add the necessary initialisers for the
> .statesize member.
>
> Signed-off-by: Russell King <rmk+ker...@arm.linux.org.uk>
Acked-by: Boris Brezillon <boris.brezil...@free-electrons.com>
> ---
> drivers/crypto/marvell/hash.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/crypto/marvell/hash.c b/drivers/crypto/marvell/hash.c
> index e8d0d7128137..a259aced3b42 100644
> --- a/drivers/crypto/marvell/hash.c
> +++ b/drivers/crypto/marvell/hash.c
> @@ -870,6 +870,7 @@ struct ahash_alg mv_md5_alg = {
> .import = mv_cesa_md5_import,
> .halg = {
> .digestsize = MD5_DIGEST_SIZE,
> + .statesize = sizeof(struct md5_state),
> .base = {
> .cra_name = "md5",
> .cra_driver_name = "mv-md5",
> @@ -959,6 +960,7 @@ struct ahash_alg mv_sha1_alg = {
> .import = mv_cesa_sha1_import,
> .halg = {
> .digestsize = SHA1_DIGEST_SIZE,
> + .statesize = sizeof(struct sha1_state),
> .base = {
> .cra_name = "sha1",
> .cra_driver_name = "mv-sha1",
> @@ -1048,6 +1050,7 @@ struct ahash_alg mv_sha256_alg = {
> .import = mv_cesa_sha256_import,
> .halg = {
> .digestsize = SHA256_DIGEST_SIZE,
> + .statesize = sizeof(struct sha256_state),
> .base = {
> .cra_name = "sha256",
> .cra_driver_name = "mv-sha256",
--
Boris Brezillon, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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