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=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS 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 B9838C5DF61 for ; Thu, 7 Nov 2019 13:42:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 99B8221D79 for ; Thu, 7 Nov 2019 13:42:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389276AbfKGNmM (ORCPT ); Thu, 7 Nov 2019 08:42:12 -0500 Received: from mail-il1-f199.google.com ([209.85.166.199]:47294 "EHLO mail-il1-f199.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389214AbfKGNmK (ORCPT ); Thu, 7 Nov 2019 08:42:10 -0500 Received: by mail-il1-f199.google.com with SMTP id c19so2630016ilf.14 for ; Thu, 07 Nov 2019 05:42:09 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=z+Z8TkdvQr/GRZpXW3peRb5jGPad3W0SZz8cB4LQWhs=; b=enoI7VBwnujRaE1axmjWw6cAFxLoe7JUqXLx5YXx/4liLtJKJ66vWOS20scqCDE6Fz FMDklv8qRCiqUCvof2sVbeANDF1vPZYftxoo8sdImDXU7IEEUA7Dic62GH3X/WByJ1hz sYKifS5H98tc8FuJLa9jhmJ+MMhsvFwPKyhA7+083yvC6rtqE7NMM0/AmgYzV+Pu4r2+ vIhNWcomMl0flGbrimA6RCPDk+lV30gw35oOY1G7cz3nwHzR/x4wVyRtO5aZrkeheFsw HyxN+xhP2iEnZyefUbmmi5buDbHjUwAMy+3m48vW186tTqSVBP2Vxc0vOPU3lnfnj7ml bmAg== X-Gm-Message-State: APjAAAX2TMIDpcxWBVpGnZAw1Cf2c+I0AFjWf1HjXk2+rb9b3ymF+e+T OC2zf+mo3KpO7dLJrDmckCCQApj4lMfSQcjYGcoWmNbnKAVc X-Google-Smtp-Source: APXvYqyf1cKz61gO8QSl1DRVCNuMsdbH0nNI8mKaxm3hxYxs5ax7V00wGOmaWFwtfhNI9XqT77Cka6rT2NVHEVha28kuNTLo32XT MIME-Version: 1.0 X-Received: by 2002:a5d:9613:: with SMTP id w19mr3497924iol.271.1573134128848; Thu, 07 Nov 2019 05:42:08 -0800 (PST) Date: Thu, 07 Nov 2019 05:42:08 -0800 In-Reply-To: <001a113f8bf6a9acd90568e8ea59@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000ef265b0596c1d48c@google.com> Subject: Re: KASAN: use-after-free Read in uprobe_perf_close From: syzbot To: acme@kernel.org, alexander.shishkin@linux.intel.com, bhole_prashant_q7@lab.ntt.co.jp, jolsa@redhat.com, linux-kernel@vger.kernel.org, mingo@kernel.org, mingo@redhat.com, namhyung@kernel.org, oleg@redhat.com, peterz@infradead.org, rostedt@goodmis.org, stable@kernel.org, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, torvalds@linux-foundation.org Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot suspects this bug was fixed by commit: commit 621b6d2ea297d0fb6030452c5bcd221f12165fcf Author: Prashant Bhole Date: Mon Apr 9 10:03:46 2018 +0000 perf/core: Fix use-after-free in uprobe_perf_close() bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1068a38c600000 start commit: 86bbbeba Merge branch 'ras-core-for-linus' of git://git.ke.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=5e630e8cb6d3da36 dashboard link: https://syzkaller.appspot.com/bug?extid=cef9473c7fa0fe8ab95e syz repro: https://syzkaller.appspot.com/x/repro.syz?x=162240bb800000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17a4e0bb800000 If the result looks correct, please mark the bug fixed by replying with: #syz fix: perf/core: Fix use-after-free in uprobe_perf_close() For information about bisection process see: https://goo.gl/tpsmEJ#bisection