From be474b58eddf43bc389c793b44267924807869c6 Mon Sep 17 00:00:00 2001 From: Gilad Ben-Yossef Date: Mon, 14 Oct 2019 21:46:27 +0800 Subject: [PATCH] crypto: ccree - use the full crypt length value commit 7a4be6c113c1f721818d1e3722a9015fe393295c upstream. In case of AEAD decryption verifcation error we were using the wrong value to zero out the plaintext buffer leaving the end of the buffer with the false plaintext. Signed-off-by: Gilad Ben-Yossef Fixes: ff27e85a85bb ("crypto: ccree - add AEAD support") CC: stable@vger.kernel.org # v4.17+ Signed-off-by: Herbert Xu Signed-off-by: Greg Kroah-Hartman Signed-off-by: Yang Yingliang --- drivers/crypto/ccree/cc_aead.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/crypto/ccree/cc_aead.c b/drivers/crypto/ccree/cc_aead.c index 0669033f5be5..aa6b45bc13b9 100644 --- a/drivers/crypto/ccree/cc_aead.c +++ b/drivers/crypto/ccree/cc_aead.c @@ -227,7 +227,7 @@ static void cc_aead_complete(struct device *dev, void *cc_req, int err) /* In case of payload authentication failure, MUST NOT * revealed the decrypted message --> zero its memory. */ - cc_zero_sgl(areq->dst, areq_ctx->cryptlen); + cc_zero_sgl(areq->dst, areq->cryptlen); err = -EBADMSG; } } else { /*ENCRYPT*/ -- GitLab