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-rw-r--r--crypto/seqiv.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/crypto/seqiv.c b/crypto/seqiv.c
index 9daa854c..b7bb9a2 100644
--- a/crypto/seqiv.c
+++ b/crypto/seqiv.c
@@ -267,6 +267,12 @@ static struct crypto_instance *seqiv_ablkcipher_alloc(struct rtattr **tb)
if (IS_ERR(inst))
goto out;
+ if (inst->alg.cra_ablkcipher.ivsize < sizeof(u64)) {
+ skcipher_geniv_free(inst);
+ inst = ERR_PTR(-EINVAL);
+ goto out;
+ }
+
inst->alg.cra_ablkcipher.givencrypt = seqiv_givencrypt_first;
inst->alg.cra_init = seqiv_init;
@@ -287,6 +293,12 @@ static struct crypto_instance *seqiv_aead_alloc(struct rtattr **tb)
if (IS_ERR(inst))
goto out;
+ if (inst->alg.cra_aead.ivsize < sizeof(u64)) {
+ aead_geniv_free(inst);
+ inst = ERR_PTR(-EINVAL);
+ goto out;
+ }
+
inst->alg.cra_aead.givencrypt = seqiv_aead_givencrypt_first;
inst->alg.cra_init = seqiv_aead_init;

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