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| author | Kees Cook <keescook@chromium.org> | 2018-09-18 19:10:51 -0700 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2018-09-28 12:46:08 +0800 |
| commit | 8d605398425843c7ce3c0e9a0434d832d3bd54cc (patch) | |
| tree | 9367982359561def8ee697e06669e2a8a15c99f0 /crypto/authenc.c | |
| parent | 5c525640ef455b23ce911ac71eb22c7256031b9a (diff) | |
| download | linux-8d605398425843c7ce3c0e9a0434d832d3bd54cc.tar.gz linux-8d605398425843c7ce3c0e9a0434d832d3bd54cc.tar.bz2 linux-8d605398425843c7ce3c0e9a0434d832d3bd54cc.zip | |
crypto: null - Remove VLA usage of skcipher
In the quest to remove all stack VLA usage from the kernel[1], this
replaces struct crypto_skcipher and SKCIPHER_REQUEST_ON_STACK() usage
with struct crypto_sync_skcipher and SYNC_SKCIPHER_REQUEST_ON_STACK(),
which uses a fixed stack size.
[1] https://lkml.kernel.org/r/CA+55aFzCG-zNmZwX4A2FQpadafLfEzK6CC=qPXydAacU1RqZWA@mail.gmail.com
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/authenc.c')
| -rw-r--r-- | crypto/authenc.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/crypto/authenc.c b/crypto/authenc.c index 4fa8d40d947b..37f54d1b2f66 100644 --- a/crypto/authenc.c +++ b/crypto/authenc.c @@ -33,7 +33,7 @@ struct authenc_instance_ctx { struct crypto_authenc_ctx { struct crypto_ahash *auth; struct crypto_skcipher *enc; - struct crypto_skcipher *null; + struct crypto_sync_skcipher *null; }; struct authenc_request_ctx { @@ -185,9 +185,9 @@ static int crypto_authenc_copy_assoc(struct aead_request *req) { struct crypto_aead *authenc = crypto_aead_reqtfm(req); struct crypto_authenc_ctx *ctx = crypto_aead_ctx(authenc); - SKCIPHER_REQUEST_ON_STACK(skreq, ctx->null); + SYNC_SKCIPHER_REQUEST_ON_STACK(skreq, ctx->null); - skcipher_request_set_tfm(skreq, ctx->null); + skcipher_request_set_sync_tfm(skreq, ctx->null); skcipher_request_set_callback(skreq, aead_request_flags(req), NULL, NULL); skcipher_request_set_crypt(skreq, req->src, req->dst, req->assoclen, @@ -318,7 +318,7 @@ static int crypto_authenc_init_tfm(struct crypto_aead *tfm) struct crypto_authenc_ctx *ctx = crypto_aead_ctx(tfm); struct crypto_ahash *auth; struct crypto_skcipher *enc; - struct crypto_skcipher *null; + struct crypto_sync_skcipher *null; int err; auth = crypto_spawn_ahash(&ictx->auth); |