From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:48558 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932423AbcGFX4U (ORCPT ); Wed, 6 Jul 2016 19:56:20 -0400 Subject: Patch "crypto: user - re-add size check for CRYPTO_MSG_GETALG" has been added to the 4.4-stable tree To: minipli@googlemail.com, gregkh@linuxfoundation.org, herbert@gondor.apana.org.au, steffen.klassert@secunet.com Cc: , From: Date: Wed, 06 Jul 2016 16:56:28 -0700 Message-ID: <146784938898100@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 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: user - re-add size check for CRYPTO_MSG_GETALG to the 4.4-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-user-re-add-size-check-for-crypto_msg_getalg.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 055ddaace03580455a7b7dbea8e93d62acee61fc Mon Sep 17 00:00:00 2001 From: Mathias Krause Date: Wed, 22 Jun 2016 20:29:37 +0200 Subject: crypto: user - re-add size check for CRYPTO_MSG_GETALG From: Mathias Krause commit 055ddaace03580455a7b7dbea8e93d62acee61fc upstream. Commit 9aa867e46565 ("crypto: user - Add CRYPTO_MSG_DELRNG") accidentally removed the minimum size check for CRYPTO_MSG_GETALG netlink messages. This allows userland to send a truncated CRYPTO_MSG_GETALG message as short as a netlink header only making crypto_report() operate on uninitialized memory by accessing data beyond the end of the netlink message. Fix this be re-adding the minimum required size of CRYPTO_MSG_GETALG messages to the crypto_msg_min[] array. Fixes: 9aa867e46565 ("crypto: user - Add CRYPTO_MSG_DELRNG") Signed-off-by: Mathias Krause Cc: Steffen Klassert Signed-off-by: Herbert Xu Signed-off-by: Greg Kroah-Hartman --- crypto/crypto_user.c | 1 + 1 file changed, 1 insertion(+) --- a/crypto/crypto_user.c +++ b/crypto/crypto_user.c @@ -455,6 +455,7 @@ static const int crypto_msg_min[CRYPTO_N [CRYPTO_MSG_NEWALG - CRYPTO_MSG_BASE] = MSGSIZE(crypto_user_alg), [CRYPTO_MSG_DELALG - CRYPTO_MSG_BASE] = MSGSIZE(crypto_user_alg), [CRYPTO_MSG_UPDATEALG - CRYPTO_MSG_BASE] = MSGSIZE(crypto_user_alg), + [CRYPTO_MSG_GETALG - CRYPTO_MSG_BASE] = MSGSIZE(crypto_user_alg), [CRYPTO_MSG_DELRNG - CRYPTO_MSG_BASE] = 0, }; Patches currently in stable-queue which might be from minipli@googlemail.com are queue-4.4/crypto-user-re-add-size-check-for-crypto_msg_getalg.patch