From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.4 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 68EFEC2BA19 for ; Tue, 14 Apr 2020 18:30:01 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id ADFE720575 for ; Tue, 14 Apr 2020 18:30:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="evzNfjaB" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org ADFE720575 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 491vD44SsQzDqv8 for ; Wed, 15 Apr 2020 04:29:56 +1000 (AEST) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=redhat.com (client-ip=207.211.31.120; helo=us-smtp-1.mimecast.com; envelope-from=longman@redhat.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: lists.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=evzNfjaB; dkim-atps=neutral Received: from us-smtp-1.mimecast.com (us-smtp-delivery-1.mimecast.com [207.211.31.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 491v8t3cfzzDqpv for ; Wed, 15 Apr 2020 04:27:08 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1586888825; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=TLv7+DlAPTIRbMlPGq/MKTxn9g95YUGNwTJol6ZbUDE=; b=evzNfjaBoC6wCoS1V+bzcOYtHbD9SzXUS83ZXqorselZop7fMYVcJA2XhtVcujpFYBL4ZR tfmaAyfvPWvASv2oK5uwpQSjcj3C1oCqIsgQPNL61hTJ/MHoA/ncXstn457cJWAIA7hwex B+PnsH/bRW41yP4beWIBSvT1KRsWynM= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-449-lrwga1poPzOYOa4E2pXY4A-1; Tue, 14 Apr 2020 14:27:01 -0400 X-MC-Unique: lrwga1poPzOYOa4E2pXY4A-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id E975D13FA; Tue, 14 Apr 2020 18:26:55 +0000 (UTC) Received: from llong.remote.csb (ovpn-118-173.rdu2.redhat.com [10.10.118.173]) by smtp.corp.redhat.com (Postfix) with ESMTP id 936D410013A1; Tue, 14 Apr 2020 18:26:48 +0000 (UTC) Subject: Re: [PATCH 1/2] mm, treewide: Rename kzfree() to kfree_sensitive() To: dsterba@suse.cz, Andrew Morton , David Howells , Jarkko Sakkinen , James Morris , "Serge E. Hallyn" , Linus Torvalds , Joe Perches , Matthew Wilcox , David Rientjes , linux-mm@kvack.org, keyrings@vger.kernel.org, linux-kernel@vger.kernel.org, x86@kernel.org, linux-crypto@vger.kernel.org, linux-s390@vger.kernel.org, linux-pm@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-mediatek@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, virtualization@lists.linux-foundation.org, netdev@vger.kernel.org, intel-wired-lan@lists.osuosl.org, linux-ppp@vger.kernel.org, wireguard@lists.zx2c4.com, linux-wireless@vger.kernel.org, devel@driverdev.osuosl.org, linux-scsi@vger.kernel.org, target-devel@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-fscrypt@vger.kernel.org, ecryptfs@vger.kernel.org, kasan-dev@googlegroups.com, linux-bluetooth@vger.kernel.org, linux-wpan@vger.kernel.org, linux-sctp@vger.kernel.org, linux-nfs@vger.kernel.org, tipc-discussion@lists.sourceforge.net, cocci@systeme.lip6.fr, linux-security-module@vger.kernel.org, linux-integrity@vger.kernel.org References: <20200413211550.8307-1-longman@redhat.com> <20200413211550.8307-2-longman@redhat.com> <20200414124854.GQ5920@twin.jikos.cz> From: Waiman Long Organization: Red Hat Message-ID: <3d8c80cb-68e5-9211-9eda-bc343ed7d894@redhat.com> Date: Tue, 14 Apr 2020 14:26:48 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.2 MIME-Version: 1.0 In-Reply-To: <20200414124854.GQ5920@twin.jikos.cz> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Content-Language: en-US X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On 4/14/20 8:48 AM, David Sterba wrote: > On Mon, Apr 13, 2020 at 05:15:49PM -0400, Waiman Long wrote: >> fs/btrfs/ioctl.c | 2 +- > >> diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c >> index 40b729dce91c..eab3f8510426 100644 >> --- a/fs/btrfs/ioctl.c >> +++ b/fs/btrfs/ioctl.c >> @@ -2691,7 +2691,7 @@ static int btrfs_ioctl_get_subvol_info(struct file *file, void __user *argp) >> btrfs_put_root(root); >> out_free: >> btrfs_free_path(path); >> - kzfree(subvol_info); >> + kfree_sensitive(subvol_info); > This is not in a sensitive context so please switch it to plain kfree. > With that you have my acked-by. Thanks. > Thanks for letting me know about. I think I will send it out as a separate patch. Cheers, Longman