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=-8.7 required=3.0 tests=BAYES_00,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 0A5F6C433E0 for ; Tue, 23 Feb 2021 23:27:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C840F64E5C for ; Tue, 23 Feb 2021 23:27:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232473AbhBWX0n (ORCPT ); Tue, 23 Feb 2021 18:26:43 -0500 Received: from mail-il1-f199.google.com ([209.85.166.199]:44541 "EHLO mail-il1-f199.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233108AbhBWXRx (ORCPT ); Tue, 23 Feb 2021 18:17:53 -0500 Received: by mail-il1-f199.google.com with SMTP id a9so166021ilm.11 for ; Tue, 23 Feb 2021 15:17:38 -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=gxwmyLE4SO4oZCr9Sp7tYxHthtIvfwFjtggaVC9TLEY=; b=mNQABjCZsszLfNcadDXKlORVcOrhT6yAOdriakgQ6GNcKdzTt1qqo6olh7V93MVqw1 oJ/KBv+UR+qsv/pUg/WnAgGIY0+Hts41a2dVjrQjefu9nMapJNQRNrNWnld33dPXsaSl yKuj3T8/2dYdncii7vBGxJyBJf/rUHxUTZE5n+56WwIgyNSI/wkWaGUUUuHowaW3VtJR QYTg3gGcRiGyyqKA/T4xTVPyH0+WfO+UAHJsbU8mIZ8Ozzbkl1EPIQGk1UnmRchyOdwy O9emIAQ2XBwesJ4likOMIT4zYf9QqmPr19b/G8MaHVpkmgIOe0OnWJq6ldGZbUgktLLb XTPQ== X-Gm-Message-State: AOAM530ngbNuCl5G9LRkNLjFkCk6Gf/fqkgpGfqWYeTlP5zOf7wqOsiq r2pguBcoDOR7k4t3+e1UzOd3VotL25Id+VU1tdZSy5ZAhHRl X-Google-Smtp-Source: ABdhPJxYMQRLjCGcu4le9+pAKne7p4M1hhMXnq5Lth1vDibAlbh+oMC6vk0slJxcCfpjngyHErXn1JGb1zpfvJVCqGsT9oaRHYFP MIME-Version: 1.0 X-Received: by 2002:a02:1909:: with SMTP id b9mr23360492jab.141.1614122227911; Tue, 23 Feb 2021 15:17:07 -0800 (PST) Date: Tue, 23 Feb 2021 15:17:07 -0800 In-Reply-To: <0000000000007ff56205ba985b60@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000004e7d105bc091e06@google.com> Subject: Re: general protection fault in vmx_vcpu_run (2) From: syzbot To: bp@alien8.de, bp@suse.de, dave.hansen@intel.com, hpa@zytor.com, jmattson@google.com, joro@8bytes.org, kirill.shutemov@linux.intel.com, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, lstoakes@gmail.com, mingo@redhat.com, pbonzini@redhat.com, seanjc@google.com, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, vkuznets@redhat.com, wanpengli@tencent.com, x86@kernel.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot has bisected this issue to: commit 167dcfc08b0b1f964ea95d410aa496fd78adf475 Author: Lorenzo Stoakes Date: Tue Dec 15 20:56:41 2020 +0000 x86/mm: Increase pgt_buf size for 5-level page tables bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13fe3ea8d00000 start commit: a99163e9 Merge tag 'devicetree-for-5.12' of git://git.kern.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=10013ea8d00000 console output: https://syzkaller.appspot.com/x/log.txt?x=17fe3ea8d00000 kernel config: https://syzkaller.appspot.com/x/.config?x=49116074dd53b631 dashboard link: https://syzkaller.appspot.com/bug?extid=42a71c84ef04577f1aef syz repro: https://syzkaller.appspot.com/x/repro.syz?x=141f3f04d00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17de4f12d00000 Reported-by: syzbot+42a71c84ef04577f1aef@syzkaller.appspotmail.com Fixes: 167dcfc08b0b ("x86/mm: Increase pgt_buf size for 5-level page tables") For information about bisection process see: https://goo.gl/tpsmEJ#bisection