1 files changed, 6 insertions, 0 deletions

diff --git a/crypto/api.c b/crypto/api.c
index 394169a8577d..f55856b21992 100644
--- a/crypto/api.c
+++ b/crypto/api.c
@@ -168,6 +168,12 @@ int crypto_register_alg(struct crypto_alg *alg)
 {
         int ret = 0;
         struct crypto_alg *q;
+
+        if (alg->cra_alignmask & (alg->cra_alignmask + 1))
+                return -EINVAL;
+
+        if (alg->cra_alignmask > PAGE_SIZE)
+                return -EINVAL;
         
         down_write(&crypto_alg_sem);