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=-1.0 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, T_DKIMWL_WL_HIGH,URIBL_BLOCKED autolearn=ham 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 9490AC04AB6 for ; Tue, 28 May 2019 19:47:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6A60620B1F for ; Tue, 28 May 2019 19:47:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1559072869; bh=2x/kpWjIrXx7i4V/S0MSF7WalHAWI9P4iRFFKUB/dcY=; h=Date:From:To:Cc:Subject:In-Reply-To:References:List-ID:From; b=nM75itCHXfHSy8Np+iQ/Q0YIWB4kxISkHU12wHXloDTMar+M3MCn12L4O49yJ1Xxs xeNotbs70r3UbH23K78dM+qcjlzFh6ARza7ulidneJ0Y/3Br0pUcPpkfRszKO3Wp/o p1lujtmv+ThceqmIhwISvGq5ba8i8ZF+obIWAzDE= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727619AbfE1Trs (ORCPT ); Tue, 28 May 2019 15:47:48 -0400 Received: from mail.kernel.org ([198.145.29.99]:46140 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726452AbfE1Trs (ORCPT ); Tue, 28 May 2019 15:47:48 -0400 Received: from akpm3.svl.corp.google.com (unknown [104.133.8.65]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 485D0208CB; Tue, 28 May 2019 19:47:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1559072867; bh=2x/kpWjIrXx7i4V/S0MSF7WalHAWI9P4iRFFKUB/dcY=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=UPb72648xLz21Qw2AVX98fJIu3AXvw9tJ7cry8ZJmNR3QxIhMsP7F7vl7d2f1EfOM 3TSg4RdszWr/CbE1VHmV6otJZdH3vrQJxCqWmj2BICi45SPjYxmB9eOj+lhEGPGz14 wd4DgARUpY9sAm0I/eBf7C5wd3X7Z/QInGOhWkxc= Date: Tue, 28 May 2019 12:47:46 -0700 From: Andrew Morton To: ebiederm@xmission.com (Eric W. Biederman) Cc: arnd@arndb.de, christian@brauner.io, deepa.kernel@gmail.com, glider@google.com, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, Oleg Nesterov , syzbot Subject: Re: KMSAN: kernel-infoleak in copy_siginfo_to_user (2) Message-Id: <20190528124746.ac703cd668ca9409bb79100b@linux-foundation.org> In-Reply-To: <87woia5vq3.fsf@xmission.com> References: <000000000000410d500588adf637@google.com> <87woia5vq3.fsf@xmission.com> X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.31; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 28 May 2019 12:34:28 -0500 ebiederm@xmission.com (Eric W. Biederman) wrote: > Didn't someone already provide a fix for this one? > > I thought I saw that hit your tree a while ago. I am looking in > ptrace.c and I don't see anything that would have fixed this issue. I can't find anything which might have addressed this. > If there isn't a fix in the queue I will take a stab at it. Thanks.