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=-7.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 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 CA305C2BB1D for ; Tue, 14 Apr 2020 03:20:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B36EE20732 for ; Tue, 14 Apr 2020 03:20:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2404623AbgDNDUN (ORCPT ); Mon, 13 Apr 2020 23:20:13 -0400 Received: from mga18.intel.com ([134.134.136.126]:59129 "EHLO mga18.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2404573AbgDNDUN (ORCPT ); Mon, 13 Apr 2020 23:20:13 -0400 IronPort-SDR: BcYFW3kiW4MvyYThOXamxTT1yBmPcpUV9IJwXBvRVCqN3PQ2nrUllMSghtoKnASsd1iGT0Lifh z+ONkwhCrdRw== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Apr 2020 20:20:12 -0700 IronPort-SDR: fmJBGYP5nFgZE0zLQisEHNdMws0RK21VQDcq5j06o1LekTyDfUix97xcWF6JOIa0HHKTdB0/58 pX3iqfT+Ykqg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.72,381,1580803200"; d="scan'208";a="253069800" Received: from sjchrist-coffee.jf.intel.com (HELO linux.intel.com) ([10.54.74.202]) by orsmga003.jf.intel.com with ESMTP; 13 Apr 2020 20:20:12 -0700 Date: Mon, 13 Apr 2020 20:20:12 -0700 From: Sean Christopherson To: syzbot Cc: christoffer.dall@arm.com, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, maz@kernel.org, pbonzini@redhat.com, peterx@redhat.com, syzkaller-bugs@googlegroups.com Subject: Re: KASAN: slab-out-of-bounds Read in gfn_to_memslot Message-ID: <20200414032011.GQ21204@linux.intel.com> References: <0000000000003311fd05a327a060@google.com> <000000000000f6ae4905a32a0633@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <000000000000f6ae4905a32a0633@google.com> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On Mon, Apr 13, 2020 at 04:03:04AM -0700, syzbot wrote: > syzbot has bisected this bug to: > > commit 36947254e5f981aeeedab1c7dfa35fc34d330e80 > Author: Sean Christopherson > Date: Tue Feb 18 21:07:32 2020 +0000 > > KVM: Dynamically size memslot array based on number of used slots > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1099775de00000 > start commit: 4f8a3cc1 Merge tag 'x86-urgent-2020-04-12' of git://git.ke.. > git tree: upstream > final crash: https://syzkaller.appspot.com/x/report.txt?x=1299775de00000 > console output: https://syzkaller.appspot.com/x/log.txt?x=1499775de00000 > kernel config: https://syzkaller.appspot.com/x/.config?x=3bfbde87e8e65624 > dashboard link: https://syzkaller.appspot.com/bug?extid=2e0179e5185bcd5b9440 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13e78c7de00000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14cf613fe00000 > > Reported-by: syzbot+2e0179e5185bcd5b9440@syzkaller.appspotmail.com > Fixes: 36947254e5f9 ("KVM: Dynamically size memslot array based on number of used slots") > > For information about bisection process see: https://goo.gl/tpsmEJ#bisection #syz dup: KASAN: slab-out-of-bounds Read in __kvm_gfn_to_hva_cache_init