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Message-Id: <1456246916-16130-1-git-send-email-sasha.levin@oracle.com> Date: Tue, 23 Feb 2016 12:01:56 -0500 From: Sasha Levin <sasha.levin@...cle.com> To: herbert@...dor.apana.org.au, davem@...emloft.net Cc: linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org, Sasha Levin <sasha.levin@...cle.com> Subject: [PATCH] crypto: algif_hash - correctly handle algos without state Algorithms without state will cause the creation of a 0 sized array, which is undefined outside of structs. Signed-off-by: Sasha Levin <sasha.levin@...cle.com> --- crypto/algif_hash.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/crypto/algif_hash.c b/crypto/algif_hash.c index 68a5cea..a9f923f 100644 --- a/crypto/algif_hash.c +++ b/crypto/algif_hash.c @@ -184,7 +184,7 @@ static int hash_accept(struct socket *sock, struct socket *newsock, int flags) struct alg_sock *ask = alg_sk(sk); struct hash_ctx *ctx = ask->private; struct ahash_request *req = &ctx->req; - char state[crypto_ahash_statesize(crypto_ahash_reqtfm(req))]; + char state[crypto_ahash_statesize(crypto_ahash_reqtfm(req))?:1]; struct sock *sk2; struct alg_sock *ask2; struct hash_ctx *ctx2; -- 1.7.10.4
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