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, USER_AGENT_SANE_1 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 A4CEAC2D0EC for ; Wed, 8 Apr 2020 01:08:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8413720730 for ; Wed, 8 Apr 2020 01:08:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726549AbgDHBIh (ORCPT ); Tue, 7 Apr 2020 21:08:37 -0400 Received: from mga02.intel.com ([134.134.136.20]:4187 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726406AbgDHBIh (ORCPT ); Tue, 7 Apr 2020 21:08:37 -0400 IronPort-SDR: cZFvGbaX4OqQ9GsCd2IKbmVqnqM1YN/34DeK93+DhGGSACNLOOBiISsD+Ok6F0lJ2t2f1Q5ECs cr4oN1hAZOuQ== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Apr 2020 18:08:36 -0700 IronPort-SDR: HbZuYYsiw/ks2csu/2ze1a2KnnrA46xrs4Px6zw8mG3s+LvWP3WzDPfwHmZvkUieVYjiMeYFGD NXpp4SB11YyQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.72,357,1580803200"; d="scan'208";a="275286114" Received: from sjchrist-coffee.jf.intel.com (HELO linux.intel.com) ([10.54.74.202]) by fmsmga004.fm.intel.com with ESMTP; 07 Apr 2020 18:08:35 -0700 Date: Tue, 7 Apr 2020 18:08:35 -0700 From: Sean Christopherson To: syzbot Cc: alex.shi@linux.alibaba.com, armijn@tjaldur.nl, gregkh@linuxfoundation.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, pbonzini@redhat.com, rfontana@redhat.com, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, willy@infradead.org Subject: Re: KASAN: slab-out-of-bounds Read in __kvm_map_gfn Message-ID: <20200408010835.GA9715@linux.intel.com> References: <00000000000001be5205a2b90e71@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <00000000000001be5205a2b90e71@google.com> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Apr 07, 2020 at 01:16:11PM -0700, syzbot wrote: > Hello, > > syzbot found the following crash on: > > HEAD commit: bef7b2a7 Merge tag 'devicetree-for-5.7' of git://git.kerne.. > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=12672c5de00000 > kernel config: https://syzkaller.appspot.com/x/.config?x=91b674b8f0368e69 > dashboard link: https://syzkaller.appspot.com/bug?extid=516667c144d77aa5ba3c > compiler: gcc (GCC) 9.0.0 20181231 (experimental) > userspace arch: i386 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1217010be00000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=106c8febe00000 #syz dup: KASAN: slab-out-of-bounds Read in __kvm_gfn_to_hva_cache_init