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Diffstat (limited to 'crypto/shash.c')
-rw-r--r--crypto/shash.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/crypto/shash.c b/crypto/shash.c
index 0f8543158826..868b6ba2b3b7 100644
--- a/crypto/shash.c
+++ b/crypto/shash.c
@@ -18,6 +18,8 @@
#include "internal.h"
+#define MAX_SHASH_ALIGNMASK 63
+
static const struct crypto_type crypto_shash_type;
int shash_no_setkey(struct crypto_shash *tfm, const u8 *key,
@@ -88,7 +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;
@@ -130,7 +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;
@@ -524,6 +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;