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-rw-r--r--crypto/ablkcipher.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/crypto/ablkcipher.c b/crypto/ablkcipher.c
index 03fb5facf0b..f6f08336df5 100644
--- a/crypto/ablkcipher.c
+++ b/crypto/ablkcipher.c
@@ -183,6 +183,12 @@ EXPORT_SYMBOL_GPL(crypto_givcipher_type);
const char *crypto_default_geniv(const struct crypto_alg *alg)
{
+ if (((alg->cra_flags & CRYPTO_ALG_TYPE_MASK) ==
+ CRYPTO_ALG_TYPE_BLKCIPHER ? alg->cra_blkcipher.ivsize :
+ alg->cra_ablkcipher.ivsize) !=
+ alg->cra_blocksize)
+ return "chainiv";
+
return alg->cra_flags & CRYPTO_ALG_ASYNC ?
"eseqiv" : skcipher_default_geniv;
}