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 A11CBC2D0DB for ; Tue, 28 Jan 2020 15:28:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 73318207FD for ; Tue, 28 Jan 2020 15:28:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726655AbgA1P2C (ORCPT ); Tue, 28 Jan 2020 10:28:02 -0500 Received: from mail-il1-f197.google.com ([209.85.166.197]:37386 "EHLO mail-il1-f197.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726437AbgA1P2C (ORCPT ); Tue, 28 Jan 2020 10:28:02 -0500 Received: by mail-il1-f197.google.com with SMTP id z79so10618631ilf.4 for ; Tue, 28 Jan 2020 07:28:02 -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=kf/2DSY+al5mumI7h2ryUV9LTBu1iYUGw9WEv/U1Od0=; b=DJ0Y9StjAwEVgMFt0hLVFrqxUqItrtCeT/ysjZCkmeHcNuSb9ZNN9huWVeR47GUO1O 1lb7BrP/iXWawf4TQ3EOhVU9Tg4gqbQUfdHOZG/cGd85EAV8EzTVphv5G9ZInxjlbNdg eQxhRNoDNha4lPQ8s90eZtHejHkRoH16RF+zjK22whpEd1HiLG/qLmfKiKW7X16sXl3y 45Iwa6EMPG43bQKa2oKQMIIbiX5uVhEtwtSsDntmcuQktvwla9+wyxy3Al7zGeZjer1F qiCGdFNtxhb3twr0OIQWNIlGS2LV/5iBR9Em3YXhEVDBc/+QnfM59bUFbM/DuTa8GAFo svOA== X-Gm-Message-State: APjAAAW1RMU0sIINkK/qYSTPRm6DCAIWqju7Z3BaoPOBPM9QZyvIk+ym qH4SzNAGoBAfVHB8U8xbuk+LlY+rCzDAhlJkV8jZ4/D0fiiB X-Google-Smtp-Source: APXvYqzy6PuA/euamEwBFqw/3xbkW5eZ7eJtHmPMU8+qYVEZwoaLB9/5JQSjUbtttEgIfBh11ag2qJBuLsLKwxJ0j/I3YKO5m9cE MIME-Version: 1.0 X-Received: by 2002:a5d:9ad9:: with SMTP id x25mr15534203ion.253.1580225281799; Tue, 28 Jan 2020 07:28:01 -0800 (PST) Date: Tue, 28 Jan 2020 07:28:01 -0800 In-Reply-To: <000000000000143de7059d2ba3e5@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000963c75059d34ded7@google.com> Subject: Re: possible deadlock in sidtab_sid2str_put From: syzbot To: eparis@parisplace.org, jannh@google.com, jeffv@google.com, keescook@chromium.org, linux-kernel@vger.kernel.org, omosnace@redhat.com, paul@paul-moore.com, paulmck@kernel.org, sds@tycho.nsa.gov, selinux@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot has bisected this bug to: commit d97bd23c2d7d866e99eb3a927c742715c85a90ef Author: Ondrej Mosnacek Date: Tue Nov 26 13:57:00 2019 +0000 selinux: cache the SID -> context string translation bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13fe5f69e00000 start commit: b0be0eff Merge tag 'x86-pti-2020-01-28' of git://git.kerne.. git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=10015f69e00000 console output: https://syzkaller.appspot.com/x/log.txt?x=17fe5f69e00000 kernel config: https://syzkaller.appspot.com/x/.config?x=9784e57c96a92f20 dashboard link: https://syzkaller.appspot.com/bug?extid=61cba5033e2072d61806 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10088e95e00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13fa605ee00000 Reported-by: syzbot+61cba5033e2072d61806@syzkaller.appspotmail.com Fixes: d97bd23c2d7d ("selinux: cache the SID -> context string translation") For information about bisection process see: https://goo.gl/tpsmEJ#bisection