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-rw-r--r--crypto/api.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/crypto/api.c b/crypto/api.c
index 959c4e5f264f..40ae42e9b6a6 100644
--- a/crypto/api.c
+++ b/crypto/api.c
@@ -215,7 +215,10 @@ int crypto_register_alg(struct crypto_alg *alg)
if (alg->cra_alignmask & (alg->cra_alignmask + 1))
return -EINVAL;
- if (alg->cra_alignmask > PAGE_SIZE)
+ if (alg->cra_alignmask & alg->cra_blocksize)
+ return -EINVAL;
+
+ if (alg->cra_blocksize > PAGE_SIZE)
return -EINVAL;
down_write(&crypto_alg_sem);

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