From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:44620 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965417AbcJ1R6s (ORCPT ); Fri, 28 Oct 2016 13:58:48 -0400 Subject: Patch "crypto: gcm - Fix IV buffer size in crypto_gcm_setkey" has been added to the 4.8-stable tree To: omosnacek@gmail.com, gregkh@linuxfoundation.org, herbert@gondor.apana.org.au Cc: , From: Date: Fri, 28 Oct 2016 13:58:55 -0400 Message-ID: <1477677535156146@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled crypto: gcm - Fix IV buffer size in crypto_gcm_setkey to the 4.8-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: crypto-gcm-fix-iv-buffer-size-in-crypto_gcm_setkey.patch and it can be found in the queue-4.8 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 50d2e6dc1f83db0563c7d6603967bf9585ce934b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ondrej=20Mosn=C3=A1=C4=8Dek?= Date: Fri, 23 Sep 2016 10:47:32 +0200 Subject: crypto: gcm - Fix IV buffer size in crypto_gcm_setkey From: Ondrej Mosnáček commit 50d2e6dc1f83db0563c7d6603967bf9585ce934b upstream. The cipher block size for GCM is 16 bytes, and thus the CTR transform used in crypto_gcm_setkey() will also expect a 16-byte IV. However, the code currently reserves only 8 bytes for the IV, causing an out-of-bounds access in the CTR transform. This patch fixes the issue by setting the size of the IV buffer to 16 bytes. Fixes: 84c911523020 ("[CRYPTO] gcm: Add support for async ciphers") Signed-off-by: Ondrej Mosnacek Signed-off-by: Herbert Xu Signed-off-by: Greg Kroah-Hartman --- crypto/gcm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/crypto/gcm.c +++ b/crypto/gcm.c @@ -117,7 +117,7 @@ static int crypto_gcm_setkey(struct cryp struct crypto_skcipher *ctr = ctx->ctr; struct { be128 hash; - u8 iv[8]; + u8 iv[16]; struct crypto_gcm_setkey_result result; Patches currently in stable-queue which might be from omosnacek@gmail.com are queue-4.8/crypto-gcm-fix-iv-buffer-size-in-crypto_gcm_setkey.patch