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=-0.7 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED 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 77341C04AB5 for ; Mon, 3 Jun 2019 22:04:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4BADB261A9 for ; Mon, 3 Jun 2019 22:04:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726724AbfFCWEB (ORCPT ); Mon, 3 Jun 2019 18:04:01 -0400 Received: from mail-it1-f199.google.com ([209.85.166.199]:37060 "EHLO mail-it1-f199.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726205AbfFCWEB (ORCPT ); Mon, 3 Jun 2019 18:04:01 -0400 Received: by mail-it1-f199.google.com with SMTP id q20so3531437itq.2 for ; Mon, 03 Jun 2019 15:04:01 -0700 (PDT) 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=J4fvUgW1EwHf5GdkMvLmBkbktAv6wzecd5S4Jz43ikQ=; b=F9LkKhQgVhq/bBRQGGuGxL7XxQPYIqiwMa9Y9UQE8gWASkfcX6ZHPahhvyTzVxw8A0 uGWzg6B6E9ktnUMfrFz54u5HIthgzvvKhsgXyJkhWu1G3LfM2s8zBqtuZcEkTYW4ZEJP T83hZpBtZ5UlgOlVJlQx7F3G6053rZGpjLmMaCCWCcKKpflpCPKOm3noX2KZ0hTWQPvy mBHqip1jQl0QjnnOGD+2I6MitySYquD42v8yBaXAzFopHP08F7T+FUGeTPNegTrbhCwq VVLkzEbRoDxlYKsE53oIQN0e9QuttPsfy/YmL9hGyrXbizxeu5R5ASRMPNjE1C2aOHm0 J/vA== X-Gm-Message-State: APjAAAW1/rF20QXgPDIvIP0+FK1KA6ofOFeEKQYpMpKWYt1twV5okbv1 d67Y7m4KDu34+hNxEf//WlOM2VGxODVKG9JLWfqQ55OgsmEk X-Google-Smtp-Source: APXvYqy092dyuRmUAcZWsDzruOze1nu2JQlB3MegZ3Kb0WH/yI/h42We3X9lAKWA1LcM4A9vfuDNs1zplvdSKP5p/7RrqdxuebqJ MIME-Version: 1.0 X-Received: by 2002:a24:3ce:: with SMTP id e197mr19185899ite.143.1559599440698; Mon, 03 Jun 2019 15:04:00 -0700 (PDT) Date: Mon, 03 Jun 2019 15:04:00 -0700 In-Reply-To: <000000000000fa91e1058a358cd5@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000a7a51a058a728a6c@google.com> Subject: Re: possible deadlock in __do_page_fault (2) From: syzbot To: adilger.kernel@dilger.ca, hdanton@sina.com, jmorris@namei.org, linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org, linux-security-module@vger.kernel.org, serge@hallyn.com, syzkaller-bugs@googlegroups.com, tytso@mit.edu, zohar@linux.ibm.com Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: linux-ext4-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org syzbot has bisected this bug to: commit 69d61f577d147b396be0991b2ac6f65057f7d445 Author: Mimi Zohar Date: Wed Apr 3 21:47:46 2019 +0000 ima: verify mprotect change is consistent with mmap policy bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=16461c5aa00000 start commit: 3c09c195 Add linux-next specific files for 20190531 git tree: linux-next final crash: https://syzkaller.appspot.com/x/report.txt?x=15461c5aa00000 console output: https://syzkaller.appspot.com/x/log.txt?x=11461c5aa00000 kernel config: https://syzkaller.appspot.com/x/.config?x=6cfb24468280cd5c dashboard link: https://syzkaller.appspot.com/bug?extid=606e524a3ca9617cf8c0 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10572ca6a00000 Reported-by: syzbot+606e524a3ca9617cf8c0@syzkaller.appspotmail.com Fixes: 69d61f577d14 ("ima: verify mprotect change is consistent with mmap policy") For information about bisection process see: https://goo.gl/tpsmEJ#bisection