[PATCH 12/12] crypto: axis - allow small size for AEAD

From: Vincent Whitchurch
Date: Tue Jan 10 2023 - 08:52:20 EST


Allow sizes smaller than the AES block size to fix this failure with
CRYPTO_MANAGER_EXTRA_TESTS:

alg: aead: artpec-gcm-aes decryption failed on test vector "random:
alen=0 plen=1 authsize=4 klen=32 novrfy=0"; expected_error=0,
actual_error=-22, cfg="random: inplace_one_sglist may_sleep use_final
src_divs=[<reimport>9.71%@+778, <flush>23.43%@+2818, 52.69%@+6,
<flush>11.98%@+1030, 2.19%@+3986] iv_offset=40 key_offset=32"

Signed-off-by: Vincent Whitchurch <vincent.whitchurch@xxxxxxxx>
---
drivers/crypto/axis/artpec6_crypto.c | 2 --
1 file changed, 2 deletions(-)

diff --git a/drivers/crypto/axis/artpec6_crypto.c b/drivers/crypto/axis/artpec6_crypto.c
index 938faf3afa69..b6fa2af42cd0 100644
--- a/drivers/crypto/axis/artpec6_crypto.c
+++ b/drivers/crypto/axis/artpec6_crypto.c
@@ -1452,8 +1452,6 @@ static int artpec6_crypto_aead_decrypt(struct aead_request *req)
struct artpec6_crypto_aead_req_ctx *req_ctx = aead_request_ctx(req);

req_ctx->decrypt = true;
- if (req->cryptlen < AES_BLOCK_SIZE)
- return -EINVAL;

ret = artpec6_crypto_common_init(&req_ctx->common,
&req->base,
--
2.34.1