From: Kees Cook Date: Wed, 16 Jun 2021 20:34:59 +0000 (-0700) Subject: crypto: nx - Fix memcpy() over-reading in nonce X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=834c47a387aea996d2ed0e31ee93314a8e2df11b;p=linux-block.git crypto: nx - Fix memcpy() over-reading in nonce commit 74c66120fda6596ad57f41e1607b3a5d51ca143d upstream. Fix typo in memcpy() where size should be CTR_RFC3686_NONCE_SIZE. Fixes: 030f4e968741 ("crypto: nx - Fix reentrancy bugs") Cc: stable@vger.kernel.org Signed-off-by: Kees Cook Signed-off-by: Herbert Xu Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/crypto/nx/nx-aes-ctr.c b/drivers/crypto/nx/nx-aes-ctr.c index 6d5ce1a66f1e..02ad26012c66 100644 --- a/drivers/crypto/nx/nx-aes-ctr.c +++ b/drivers/crypto/nx/nx-aes-ctr.c @@ -118,7 +118,7 @@ static int ctr3686_aes_nx_crypt(struct skcipher_request *req) struct nx_crypto_ctx *nx_ctx = crypto_skcipher_ctx(tfm); u8 iv[16]; - memcpy(iv, nx_ctx->priv.ctr.nonce, CTR_RFC3686_IV_SIZE); + memcpy(iv, nx_ctx->priv.ctr.nonce, CTR_RFC3686_NONCE_SIZE); memcpy(iv + CTR_RFC3686_NONCE_SIZE, req->iv, CTR_RFC3686_IV_SIZE); iv[12] = iv[13] = iv[14] = 0; iv[15] = 1;