4.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Andrey Ryabinin <aryabinin@xxxxxxxx> 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@xxxxxxxx> Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- 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, -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html