diff mbox series

[4.19,026/114] crypto: ccree - use the full crypt length value

Message ID 20191010083556.445175875@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg KH Oct. 10, 2019, 8:35 a.m. UTC 
From: Gilad Ben-Yossef <gilad@benyossef.com>


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 <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>

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>


---
 drivers/crypto/ccree/cc_aead.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

--- a/drivers/crypto/ccree/cc_aead.c
+++ b/drivers/crypto/ccree/cc_aead.c
@@ -227,7 +227,7 @@  static void cc_aead_complete(struct devi
 			/* 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*/