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=-4.1 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 D2BE8C433E4 for ; Mon, 27 Jul 2020 15:30:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B0A6020775 for ; Mon, 27 Jul 2020 15:30:40 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="DMDO/s0V" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729693AbgG0Pah (ORCPT ); Mon, 27 Jul 2020 11:30:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47988 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726744AbgG0Pag (ORCPT ); Mon, 27 Jul 2020 11:30:36 -0400 Received: from mail-qv1-xf41.google.com (mail-qv1-xf41.google.com [IPv6:2607:f8b0:4864:20::f41]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5C665C061794; Mon, 27 Jul 2020 08:30:36 -0700 (PDT) Received: by mail-qv1-xf41.google.com with SMTP id u8so7616591qvj.12; Mon, 27 Jul 2020 08:30:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=06/0Fc/CzxtKe/AQi80TbkGLzxKNq+FXAhjScQa1P0w=; b=DMDO/s0VURJbuRU3EHjXuLMdKHeGJSp2p9miEcOKpygLfWx3etfGBJvyZT6YdaZv+D cRoFG+Y+3ZnrS9yjMKJeiB0VelIwPoCw1EqPPnVv2zHz3BT28EHOgaRMlAD8lBHtJSV2 swA4A9tm6Gr6T7RraR1YT/GNZ2z1TVHDrKojgEASJ9i+C1WXyMQDEZvJIv8tYeF/jp7S Tz9tY4hGgzbJZO8677sk2m2r2b3E4NQT2kL4hY1SAiikCv20LlP77egY5OY91ZRUSADj BK240vqACl1y5S2tAum2n+iasGs2ljw/dzEQQdijqTFEuVEbFezqKj92L1fG5KWU/Mt+ X43A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=06/0Fc/CzxtKe/AQi80TbkGLzxKNq+FXAhjScQa1P0w=; b=o3xGibHCqN4ftcE2X91ivADbsm3IIThXFMoIlAjbF8bAjAWJNoKUIM1eI0EpqAiX0y gBu9vvGR1wsQfFnwOzrr0hzVqGprHiu719FoMZ6SuGNdBSbxHjfA1JawWt8v20v/Ji2Z NNl84/KlIB97hbGDXNzVhyAW86YnBE3k5qV4rgwUkOx8d04tYpFWafvaDOH7aiSYApAa 8kTTd67nDXYfK0Y8JSrlIITJJmsCu6ucBC/sRD+8MKu+Y1SRL3uSjJv6v42Fa+6ESyMS QDp3gdhpMnjqVu6L8yeHMiUt+DxXBR+jTSxyLXL6Hm4eCeML5f27TFr0ACJR8o/+nkox X5fw== X-Gm-Message-State: AOAM531L1CDfbha934atYsv3fRMVxuNpv+uLsSfWO0SWEc1K8DNE5iWX pKVw4LrLQv/MVEuQO+pwig== X-Google-Smtp-Source: ABdhPJw5MjdGAe9ULHqTPC3/a5mAB9/7H9/flRqXH8RawvWje9UzoAdVymmniLR/3m88yRIKeSCTXQ== X-Received: by 2002:a05:6214:1143:: with SMTP id b3mr21082466qvt.84.1595863835563; Mon, 27 Jul 2020 08:30:35 -0700 (PDT) Received: from PWN ([209.94.141.207]) by smtp.gmail.com with ESMTPSA id c133sm19928340qkb.111.2020.07.27.08.30.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 27 Jul 2020 08:30:34 -0700 (PDT) Date: Mon, 27 Jul 2020 11:30:32 -0400 From: Peilin Ye To: Dan Carpenter Cc: Arnd Bergmann , Mauro Carvalho Chehab , Greg Kroah-Hartman , syzkaller-bugs , Hans Verkuil , Sakari Ailus , Laurent Pinchart , Vandana BN , Ezequiel Garcia , Niklas =?iso-8859-1?Q?S=F6derlund?= , linux-kernel-mentees@lists.linuxfoundation.org, Linux Media Mailing List , "linux-kernel@vger.kernel.org" , Linus Walleij Subject: Re: [Linux-kernel-mentees] [PATCH v3] media/v4l2-core: Fix kernel-infoleak in video_put_user() Message-ID: <20200727153032.GB315139@PWN> References: <20200726220557.102300-1-yepeilin.cs@gmail.com> <20200726222703.102701-1-yepeilin.cs@gmail.com> <20200727131608.GD1913@kadam> <20200727141416.GA306745@PWN> <20200727144609.GG1913@kadam> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200727144609.GG1913@kadam> Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org On Mon, Jul 27, 2020 at 05:46:09PM +0300, Dan Carpenter wrote: > On Mon, Jul 27, 2020 at 10:14:16AM -0400, Peilin Ye wrote: > > Yes, I would like to! I will start from: > > > > drivers/firewire/core-cdev.c:463 > > My prefered fix for this would be to add a memset at the start of > fill_bus_reset_event(). > > memset(event, 0, sizeof(*event)); > > spin_lock_irq(&card->lock); > > event->closure = client->bus_reset_closure; > > > > drivers/input/misc/uinput.c:743 I just sent a patch to fix this as you suggested. > I don't think this is a bug. I see. I am now fixing: block/scsi_ioctl.c:707 scsi_put_cdrom_generic_arg() warn: check that 'cgc32' doesn't leak information (struct has a hole after 'data_direction')