[PATCH 4.4 085/115] crypto: tcrypt - fix buffer lengths in test_aead_speed()

Greg Kroah-Hartman
2017-12-18T17:58:28Z

From: Robert Baronescu <robert.baronescu@nxp.com>

[ Upstream commit 7aacbfcb331ceff3ac43096d563a1f93ed46e35e ]

Fix the way the length of the buffers used for
encryption / decryption are computed.
For e.g. in case of encryption, input buffer does not contain
an authentication tag.

Signed-off-by: Robert Baronescu <robert.baronescu@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
crypto/tcrypt.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)

--- a/crypto/tcrypt.c
+++ b/crypto/tcrypt.c
@@ -410,7 +410,7 @@ static void test_aead_speed(const char *
}

sg_init_aead(sg, xbuf,
- *b_size + (enc ? authsize : 0));
+ *b_size + (enc ? 0 : authsize));

sg_init_aead(sgout, xoutbuf,
*b_size + (enc ? authsize : 0));
@@ -418,7 +418,9 @@ static void test_aead_speed(const char *
sg_set_buf(&sg[0], assoc, aad_size);
sg_set_buf(&sgout[0], assoc, aad_size);

- aead_request_set_crypt(req, sg, sgout, *b_size, iv);
+ aead_request_set_crypt(req, sg, sgout,
+ *b_size + (enc ? 0 : authsize),
+ iv);
aead_request_set_ad(req, aad_size);

if (secs)