diff options
Diffstat (limited to 'crypto')
| -rw-r--r-- | crypto/ahash.c | 2 | ||||
| -rw-r--r-- | crypto/digest.c | 2 | ||||
| -rw-r--r-- | crypto/hash.c | 2 | ||||
| -rw-r--r-- | crypto/hmac.c | 16 |
4 files changed, 13 insertions, 9 deletions
diff --git a/crypto/ahash.c b/crypto/ahash.c index a83e035d9a3f..8c1f918a6878 100644 --- a/crypto/ahash.c +++ b/crypto/ahash.c @@ -68,7 +68,7 @@ static int crypto_init_ahash_ops(struct crypto_tfm *tfm, u32 type, u32 mask) struct ahash_alg *alg = &tfm->__crt_alg->cra_ahash; struct ahash_tfm *crt = &tfm->crt_ahash; - if (alg->digestsize > crypto_tfm_alg_blocksize(tfm)) + if (alg->digestsize > PAGE_SIZE / 8) return -EINVAL; crt->init = alg->init; diff --git a/crypto/digest.c b/crypto/digest.c index 025c9aea24ed..d63d5d96feec 100644 --- a/crypto/digest.c +++ b/crypto/digest.c @@ -141,7 +141,7 @@ int crypto_init_digest_ops(struct crypto_tfm *tfm) struct hash_tfm *ops = &tfm->crt_hash; struct digest_alg *dalg = &tfm->__crt_alg->cra_digest; - if (dalg->dia_digestsize > crypto_tfm_alg_blocksize(tfm)) + if (dalg->dia_digestsize > PAGE_SIZE / 8) return -EINVAL; ops->init = init; diff --git a/crypto/hash.c b/crypto/hash.c index f9400a014e74..0d7caa9ab748 100644 --- a/crypto/hash.c +++ b/crypto/hash.c @@ -152,7 +152,7 @@ static int crypto_init_hash_ops(struct crypto_tfm *tfm, u32 type, u32 mask) { struct hash_alg *alg = &tfm->__crt_alg->cra_hash; - if (alg->digestsize > crypto_tfm_alg_blocksize(tfm)) + if (alg->digestsize > PAGE_SIZE / 8) return -EINVAL; if ((mask & CRYPTO_ALG_TYPE_HASH_MASK) != CRYPTO_ALG_TYPE_HASH_MASK) diff --git a/crypto/hmac.c b/crypto/hmac.c index 14c6351e639d..7ff2d6a8c7d0 100644 --- a/crypto/hmac.c +++ b/crypto/hmac.c @@ -226,6 +226,7 @@ static struct crypto_instance *hmac_alloc(struct rtattr **tb) struct crypto_instance *inst; struct crypto_alg *alg; int err; + int ds; err = crypto_check_attr_type(tb, CRYPTO_ALG_TYPE_HASH); if (err) @@ -236,6 +237,13 @@ static struct crypto_instance *hmac_alloc(struct rtattr **tb) if (IS_ERR(alg)) return ERR_CAST(alg); + inst = ERR_PTR(-EINVAL); + ds = (alg->cra_flags & CRYPTO_ALG_TYPE_MASK) == + CRYPTO_ALG_TYPE_HASH ? alg->cra_hash.digestsize : + alg->cra_digest.dia_digestsize; + if (ds > alg->cra_blocksize) + goto out_put_alg; + inst = crypto_alloc_instance("hmac", alg); if (IS_ERR(inst)) goto out_put_alg; @@ -246,14 +254,10 @@ static struct crypto_instance *hmac_alloc(struct rtattr **tb) inst->alg.cra_alignmask = alg->cra_alignmask; inst->alg.cra_type = &crypto_hash_type; - inst->alg.cra_hash.digestsize = - (alg->cra_flags & CRYPTO_ALG_TYPE_MASK) == - CRYPTO_ALG_TYPE_HASH ? alg->cra_hash.digestsize : - alg->cra_digest.dia_digestsize; + inst->alg.cra_hash.digestsize = ds; inst->alg.cra_ctxsize = sizeof(struct hmac_ctx) + - ALIGN(inst->alg.cra_blocksize * 2 + - inst->alg.cra_hash.digestsize, + ALIGN(inst->alg.cra_blocksize * 2 + ds, sizeof(void *)); inst->alg.cra_init = hmac_init_tfm; |