From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:54430 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753183AbdLGMX3 (ORCPT ); Thu, 7 Dec 2017 07:23:29 -0500 Subject: Patch "staging: ccree: fix leak of import() after init()" has been added to the 4.14-stable tree To: gilad@benyossef.com, dan.carpenter@oracle.com, gregkh@linuxfoundation.org Cc: , From: Date: Thu, 07 Dec 2017 13:23:36 +0100 Message-ID: <1512649416185203@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 staging: ccree: fix leak of import() after init() to the 4.14-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: staging-ccree-fix-leak-of-import-after-init.patch and it can be found in the queue-4.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From c5f39d07860c35e5e4c63188139465af790f86ce Mon Sep 17 00:00:00 2001 From: Gilad Ben-Yossef Date: Thu, 9 Nov 2017 09:16:09 +0000 Subject: staging: ccree: fix leak of import() after init() From: Gilad Ben-Yossef commit c5f39d07860c35e5e4c63188139465af790f86ce upstream. crypto_ahash_import() may be called either after crypto_ahash_init() or without such call. Right now we always internally call init() as part of import(), thus leaking memory and mappings if the user has already called init() herself. Fix this by only calling init() internally if the state is not already initialized. Fixes: commit 454527d0d94f ("staging: ccree: fix hash import/export") Signed-off-by: Gilad Ben-Yossef Reviewed-by: Dan Carpenter Signed-off-by: Greg Kroah-Hartman --- drivers/staging/ccree/ssi_hash.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) --- a/drivers/staging/ccree/ssi_hash.c +++ b/drivers/staging/ccree/ssi_hash.c @@ -1790,9 +1790,12 @@ static int ssi_ahash_import(struct ahash } in += sizeof(u32); - rc = ssi_hash_init(state, ctx); - if (rc) - goto out; + /* call init() to allocate bufs if the user hasn't */ + if (!state->digest_buff) { + rc = ssi_hash_init(state, ctx); + if (rc) + goto out; + } dma_sync_single_for_cpu(dev, state->digest_buff_dma_addr, ctx->inter_digestsize, DMA_BIDIRECTIONAL); Patches currently in stable-queue which might be from gilad@benyossef.com are queue-4.14/staging-ccree-fix-leak-of-import-after-init.patch