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authorGilad Ben-Yossef <gilad@benyossef.com>2019-07-29 13:40:18 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2019-08-09 08:05:30 +0300
commit7a4be6c113c1f721818d1e3722a9015fe393295c (patch)
tree1a742dc7999e7832446bccc0c9cb05171565bc6b /drivers
parentb7a2758f20251e1d7f884d96e46ea165810431c3 (diff)
downloadlinux-7a4be6c113c1f721818d1e3722a9015fe393295c.tar.xz
crypto: ccree - use the full crypt length value
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 <gilad@benyossef.com> Fixes: ff27e85a85bb ("crypto: ccree - add AEAD support") CC: stable@vger.kernel.org # v4.17+ Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/crypto/ccree/cc_aead.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/crypto/ccree/cc_aead.c b/drivers/crypto/ccree/cc_aead.c
index ce302adc76c7..339fabfe3de6 100644
--- a/drivers/crypto/ccree/cc_aead.c
+++ b/drivers/crypto/ccree/cc_aead.c
@@ -236,7 +236,7 @@ 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;
}
/*ENCRYPT*/