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crypto: authencesn - Only access common skcipher fields on spawn

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As skcipher spawns may be of the type lskcipher, only the common
fields may be accessed.  This was already the case but use the
correct helpers to make this more obvious.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu 2023-10-03 11:43:24 +08:00
parent cae3304330
commit 24a285cea8
1 changed files with 4 additions and 4 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

8
crypto/authencesn.c
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@ -390,9 +390,9 @@ static int crypto_authenc_esn_create(struct crypto_template *tmpl,
u32 mask; u32 mask;
struct aead_instance *inst; struct aead_instance *inst;
struct authenc_esn_instance_ctx *ctx; struct authenc_esn_instance_ctx *ctx;
struct skcipher_alg_common *enc;
struct hash_alg_common *auth; struct hash_alg_common *auth;
struct crypto_alg *auth_base; struct crypto_alg *auth_base;
struct skcipher_alg *enc;
int err; int err;
err = crypto_check_attr_type(tb, CRYPTO_ALG_TYPE_AEAD, &mask); err = crypto_check_attr_type(tb, CRYPTO_ALG_TYPE_AEAD, &mask);
@ -415,7 +415,7 @@ static int crypto_authenc_esn_create(struct crypto_template *tmpl,
crypto_attr_alg_name(tb[2]), 0, mask); crypto_attr_alg_name(tb[2]), 0, mask);
if (err) if (err)
goto err_free_inst; goto err_free_inst;
enc = crypto_spawn_skcipher_alg(&ctx->enc); enc = crypto_spawn_skcipher_alg_common(&ctx->enc);
err = -ENAMETOOLONG; err = -ENAMETOOLONG;
if (snprintf(inst->alg.base.cra_name, CRYPTO_MAX_ALG_NAME, if (snprintf(inst->alg.base.cra_name, CRYPTO_MAX_ALG_NAME,
@ -435,8 +435,8 @@ static int crypto_authenc_esn_create(struct crypto_template *tmpl,
enc->base.cra_alignmask; enc->base.cra_alignmask;
inst->alg.base.cra_ctxsize = sizeof(struct crypto_authenc_esn_ctx); inst->alg.base.cra_ctxsize = sizeof(struct crypto_authenc_esn_ctx);
inst->alg.ivsize = crypto_skcipher_alg_ivsize(enc); inst->alg.ivsize = enc->ivsize;
inst->alg.chunksize = crypto_skcipher_alg_chunksize(enc); inst->alg.chunksize = enc->chunksize;
inst->alg.maxauthsize = auth->digestsize; inst->alg.maxauthsize = auth->digestsize;
inst->alg.init = crypto_authenc_esn_init_tfm; inst->alg.init = crypto_authenc_esn_init_tfm;