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authorKees Cook <keescook@chromium.org>2018-09-18 19:10:51 -0700
committerHerbert Xu <herbert@gondor.apana.org.au>2018-09-28 12:46:08 +0800
commit8d605398425843c7ce3c0e9a0434d832d3bd54cc (patch)
tree9367982359561def8ee697e06669e2a8a15c99f0 /include/crypto
parent5c525640ef455b23ce911ac71eb22c7256031b9a (diff)
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 'include/crypto')
-rw-r--r--include/crypto/internal/geniv.h2
-rw-r--r--include/crypto/null.h2
2 files changed, 2 insertions, 2 deletions
diff --git a/include/crypto/internal/geniv.h b/include/crypto/internal/geniv.h
index 2bcfb931bc5b..71be24cd59bd 100644
--- a/include/crypto/internal/geniv.h
+++ b/include/crypto/internal/geniv.h
@@ -20,7 +20,7 @@
struct aead_geniv_ctx {
spinlock_t lock;
struct crypto_aead *child;
- struct crypto_skcipher *sknull;
+ struct crypto_sync_skcipher *sknull;
u8 salt[] __attribute__ ((aligned(__alignof__(u32))));
};
diff --git a/include/crypto/null.h b/include/crypto/null.h
index 15aeef6e30ef..0ef577cc00e3 100644
--- a/include/crypto/null.h
+++ b/include/crypto/null.h
@@ -9,7 +9,7 @@
#define NULL_DIGEST_SIZE 0
#define NULL_IV_SIZE 0
-struct crypto_skcipher *crypto_get_default_null_skcipher(void);
+struct crypto_sync_skcipher *crypto_get_default_null_skcipher(void);
void crypto_put_default_null_skcipher(void);
#endif