diff options
Diffstat (limited to 'crypto/shash.c')
| -rw-r--r-- | crypto/shash.c | 27 |
1 files changed, 10 insertions, 17 deletions
diff --git a/crypto/shash.c b/crypto/shash.c index 4c88e63b3350..868b6ba2b3b7 100644 --- a/crypto/shash.c +++ b/crypto/shash.c @@ -18,26 +18,16 @@ #include "internal.h" +#define MAX_SHASH_ALIGNMASK 63 + static const struct crypto_type crypto_shash_type; -static int shash_no_setkey(struct crypto_shash *tfm, const u8 *key, - unsigned int keylen) +int shash_no_setkey(struct crypto_shash *tfm, const u8 *key, + unsigned int keylen) { return -ENOSYS; } - -/* - * Check whether an shash algorithm has a setkey function. - * - * For CFI compatibility, this must not be an inline function. This is because - * when CFI is enabled, modules won't get the same address for shash_no_setkey - * (if it were exported, which inlining would require) as the core kernel will. - */ -bool crypto_shash_alg_has_setkey(struct shash_alg *alg) -{ - return alg->setkey != shash_no_setkey; -} -EXPORT_SYMBOL_GPL(crypto_shash_alg_has_setkey); +EXPORT_SYMBOL_GPL(shash_no_setkey); static int shash_setkey_unaligned(struct crypto_shash *tfm, const u8 *key, unsigned int keylen) @@ -100,7 +90,7 @@ static int shash_update_unaligned(struct shash_desc *desc, const u8 *data, * We cannot count on __aligned() working for large values: * https://patchwork.kernel.org/patch/9507697/ */ - u8 ubuf[MAX_ALGAPI_ALIGNMASK * 2]; + u8 ubuf[MAX_SHASH_ALIGNMASK * 2]; u8 *buf = PTR_ALIGN(&ubuf[0], alignmask + 1); int err; @@ -142,7 +132,7 @@ static int shash_final_unaligned(struct shash_desc *desc, u8 *out) * We cannot count on __aligned() working for large values: * https://patchwork.kernel.org/patch/9507697/ */ - u8 ubuf[MAX_ALGAPI_ALIGNMASK + HASH_MAX_DIGESTSIZE]; + u8 ubuf[MAX_SHASH_ALIGNMASK + HASH_MAX_DIGESTSIZE]; u8 *buf = PTR_ALIGN(&ubuf[0], alignmask + 1); int err; @@ -536,6 +526,9 @@ static int shash_prepare_alg(struct shash_alg *alg) alg->statesize > HASH_MAX_STATESIZE) return -EINVAL; + if (base->cra_alignmask > MAX_SHASH_ALIGNMASK) + return -EINVAL; + if ((alg->export && !alg->import) || (alg->import && !alg->export)) return -EINVAL; |