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crypto: ccree - fix AEAD decrypt auth fail

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On AEAD decryption authentication failure we are suppose to
zero out the output plaintext buffer. However, we've missed
skipping the optional associated data that may prefix the
ciphertext. This commit fixes this issue.

Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Fixes: e88b27c8ea ("crypto: ccree - use std api sg_zero_buffer")
Cc: stable@vger.kernel.org
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Gilad Ben-Yossef 2020-01-16 12:14:38 +02:00 committed by Herbert Xu
parent 684cf266eb
commit 2a6bc713f1
1 changed files with 1 additions and 1 deletions
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drivers/crypto/ccree/cc_aead.c
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@ -237,7 +237,7 @@ static void cc_aead_complete(struct device *dev, void *cc_req, int err)
* revealed the decrypted message --> zero its memory.
*/
sg_zero_buffer(areq->dst, sg_nents(areq->dst),
areq->cryptlen, 0);
areq->cryptlen, areq->assoclen);
err = -EBADMSG;
}
/*ENCRYPT*/