From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754611AbZBQTn5 (ORCPT ); Tue, 17 Feb 2009 14:43:57 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753138AbZBQTnr (ORCPT ); Tue, 17 Feb 2009 14:43:47 -0500 Received: from cmpxchg.org ([85.214.51.133]:38456 "EHLO cmpxchg.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753092AbZBQTnq (ORCPT ); Tue, 17 Feb 2009 14:43:46 -0500 Message-Id: <20090217182615.897042724@cmpxchg.org> User-Agent: quilt/0.47-1 Date: Tue, 17 Feb 2009 19:26:15 +0100 From: Johannes Weiner To: Andrew Morton Cc: Pekka Enberg , Chas Williams , Evgeniy Polyakov , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [patch 0/7] kzfree() v2 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This series introduces kzfree() and converts callsites which do memset() + kzfree() explicitely. The caller intention is to ensure that security-sensitive data are cleared from slab objects before they are passed back to the allocator. This also removes the last modular ksize() user (crypto/api.c) again by converting it to kzfree() which figures out the length of the memory region to zero internally. I left out drivers/w1/w1{,_int}.c and dropped the conversion of drivers/atm/mpoa_caches.c in this iteration as I think they don't strictly need the zeroeing and the memsetting should probably be removed [ added Chas Williams and Evgeniy Polyakov to Cc ]. v2: - EXPORT_SYMBOL(kzfree), thanks linker - remove superfluous NULL checks, thanks Pekka - mention `security' in the description Hannes arch/s390/crypto/prng.c | 3 +-- crypto/api.c | 5 +---- drivers/md/dm-crypt.c | 6 ++---- drivers/s390/crypto/zcrypt_pcixcc.c | 3 +-- drivers/usb/host/hwa-hc.c | 3 +-- drivers/usb/wusbcore/cbaf.c | 3 +-- fs/cifs/connect.c | 6 +----- fs/cifs/misc.c | 10 ++-------- fs/ecryptfs/keystore.c | 3 +-- fs/ecryptfs/messaging.c | 3 +-- include/linux/slab.h | 1 + mm/util.c | 20 ++++++++++++++++++++ 12 files changed, 33 insertions(+), 33 deletions(-)