[PATCH] crypto: nx: Fix memcpy() over-reading in nonce
Kees Cook
keescook at chromium.org
Thu Jun 17 06:34:59 AEST 2021
Fix typo in memcpy() where size should be CTR_RFC3686_NONCE_SIZE.
Fixes: 030f4e968741 ("crypto: nx - Fix reentrancy bugs")
Cc: stable at vger.kernel.org
Signed-off-by: Kees Cook <keescook at chromium.org>
---
drivers/crypto/nx/nx-aes-ctr.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/crypto/nx/nx-aes-ctr.c b/drivers/crypto/nx/nx-aes-ctr.c
index 13f518802343..6120e350ff71 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;
--
2.25.1
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