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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0D851C4332F for ; Thu, 3 Nov 2022 07:26:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231180AbiKCH0P (ORCPT ); Thu, 3 Nov 2022 03:26:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58550 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229994AbiKCH0K (ORCPT ); Thu, 3 Nov 2022 03:26:10 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 693F6389F; Thu, 3 Nov 2022 00:26:04 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id EF93DB82680; Thu, 3 Nov 2022 07:26:02 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2EC15C433C1; Thu, 3 Nov 2022 07:25:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1667460361; bh=6gSn24RE5tSW2tjjID0EiJ3LSBai5yjV2gtQ5QL4GTE=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=JNvrJYnoHKTLj4chzreMntUuJ17kljGcge9mZdoSALAARQVJxwb2OxV4ql631y4Oq JHsOWAQrQ7dnHfNlt3SDtjK0ju9fGiON8EwhoxXXIcI946Te1ghxsmkQPgBgbdW3iU bQFW1A2FlEaXr02YFcA+7AJdWvXDfo2gGbdAepIlCOEjhdAj3pwA5FD9bhkng4wVHi 0DL2OLPWt3ecE0Zpd95qcZm1z3cxj0oa4WyOMom2TaWiFC3v5jNuhtLtzx9OR4/aPe IEjV2NVT14XDZLDRB2/SsNdIJ/7QlsKNqzjAx8pavjz3yY5xtenfxM0/IpXZt8FV2Z BCEW/LFN0Bj5w== Date: Thu, 3 Nov 2022 08:25:57 +0100 From: Christian Brauner To: syzbot Cc: linux-kernel@vger.kernel.org, linux-unionfs@vger.kernel.org, miklos@szeredi.hu, syzkaller-bugs@googlegroups.com Subject: Re: [syzbot] BUG: unable to handle kernel paging request in ovl_set_acl Message-ID: <20221103072557.qc2hsowoaatstrbh@wittgenstein> References: <000000000000cb639605ec7f6e10@google.com> <000000000000452ed505ec87d0ad@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <000000000000452ed505ec87d0ad@google.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Nov 02, 2022 at 07:35:42PM -0700, syzbot wrote: > syzbot has found a reproducer for the following issue on: > > HEAD commit: 61c3426aca2c Add linux-next specific files for 20221102 > git tree: linux-next > console+strace: https://syzkaller.appspot.com/x/log.txt?x=118e21de880000 > kernel config: https://syzkaller.appspot.com/x/.config?x=acb529cc910d907c > dashboard link: https://syzkaller.appspot.com/bug?extid=3f6ef1c4586bb6fd1f61 > compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1620a689880000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=153fb2a9880000 > > Downloadable assets: > disk image: https://storage.googleapis.com/syzbot-assets/cc56d88dd6a3/disk-61c3426a.raw.xz > vmlinux: https://storage.googleapis.com/syzbot-assets/5921b65b080f/vmlinux-61c3426a.xz > kernel image: https://storage.googleapis.com/syzbot-assets/39cbd355fedd/bzImage-61c3426a.xz > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > Reported-by: syzbot+3f6ef1c4586bb6fd1f61@syzkaller.appspotmail.com #syz test: https://git.kernel.org/pub/scm/linux/kernel/git/vfs/idmapping.git/ 5b52aebef8954cadff29918bb61d7fdc7be07837