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,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 464F5CA9ED0 for ; Sun, 3 Nov 2019 04:36:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 28838214D8 for ; Sun, 3 Nov 2019 04:36:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727199AbfKCEgD (ORCPT ); Sun, 3 Nov 2019 00:36:03 -0400 Received: from mail-il1-f200.google.com ([209.85.166.200]:42322 "EHLO mail-il1-f200.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726968AbfKCEgD (ORCPT ); Sun, 3 Nov 2019 00:36:03 -0400 Received: by mail-il1-f200.google.com with SMTP id b7so1153846ilh.9 for ; Sat, 02 Nov 2019 21:36:01 -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=M+1ZDFfcrH+VAQWLoZZHEEfvJgWEhhXd8OnHFWpRv3Y=; b=jjLtmocF3hryEY7VjP/OAiu5y5tobFc5Ixp99okqNr3VF6IuAwfx0V9Idb0J8LTHXT CqUb2th/DtV6iv26opmb4DHlOuzVyu9+k8o6L8liMwUcpc0KF31wElK/D6s/wGuxRDfO JpkEpnGYOP4hhHp088uek84t4+QUdX0qsia4jDxI4ox8aYxUjlmRWWmPcOE74fox1+Ok WJcOLnzvsbJKBpwNsIS7L2mG/+Rr8ONGZdZ7LqLAxDw+zkv1vJrln1ydIatphY1rafpL e2JKz91v4qd/mdePeCbh7u6JS3b+ZTPbHeDo3mXT+cmlpoIYMSRo8RKyDpMiCw7BfNIB wAkw== X-Gm-Message-State: APjAAAXVEL0ADNEGIRY3iMsTb7lke2VfgSigzmif22IPzPa4Agz6mYWT sKg0E1q6yRplDsCPtF0dYrONrWB1QjQP7xVDns4anBoYwi6e X-Google-Smtp-Source: APXvYqxItIWYSpOcf1AXFMpH8Ub6pBbhUL7/Lcw2BhVvs92D6D18UI0J7DOxRBzc+z8rKFuUe7pN6yF0MfklBEJKCDLhBTRh49FR MIME-Version: 1.0 X-Received: by 2002:a92:c525:: with SMTP id m5mr4523632ili.91.1572755761014; Sat, 02 Nov 2019 21:36:01 -0700 (PDT) Date: Sat, 02 Nov 2019 21:36:01 -0700 In-Reply-To: <000000000000bd85b40596657dfa@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000742ddc059669bc92@google.com> Subject: Re: WARNING: suspicious RCU usage in kvm_dev_ioctl From: syzbot To: jmattson@google.com, jsperbeck@google.com, junaids@google.com, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, pbonzini@redhat.com, rkrcmar@redhat.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org syzbot has bisected this bug to: commit a97b0e773e492ae319a7e981e98962a1060215f9 Author: Jim Mattson Date: Fri Oct 25 11:34:58 2019 +0000 kvm: call kvm_arch_destroy_vm if vm creation fails bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13f19914e00000 start commit: 9d234505 Merge tag 'hwmon-for-v5.4-rc6' of git://git.kerne.. git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=10099914e00000 console output: https://syzkaller.appspot.com/x/log.txt?x=17f19914e00000 kernel config: https://syzkaller.appspot.com/x/.config?x=cbbed3e8d4eb64bf dashboard link: https://syzkaller.appspot.com/bug?extid=75475908cd0910f141ee syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14e20268e00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15209b84e00000 Reported-by: syzbot+75475908cd0910f141ee@syzkaller.appspotmail.com Fixes: a97b0e773e49 ("kvm: call kvm_arch_destroy_vm if vm creation fails") For information about bisection process see: https://goo.gl/tpsmEJ#bisection