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crypto: gcm - Filter out async ghash if necessary
As it is if you ask for a sync gcm you may actually end up with an async one because it does not filter out async implementations of ghash. This patch fixes this by adding the necessary filter when looking for ghash. Cc: stable@vger.kernel.org Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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@ -639,7 +639,9 @@ static int crypto_gcm_create_common(struct crypto_template *tmpl,
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ghash_alg = crypto_find_alg(ghash_name, &crypto_ahash_type,
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CRYPTO_ALG_TYPE_HASH,
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CRYPTO_ALG_TYPE_AHASH_MASK);
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CRYPTO_ALG_TYPE_AHASH_MASK |
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crypto_requires_sync(algt->type,
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algt->mask));
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if (IS_ERR(ghash_alg))
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return PTR_ERR(ghash_alg);
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