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=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 E47FBC433DF for ; Thu, 27 Aug 2020 01:11:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A981D2073A for ; Thu, 27 Aug 2020 01:11:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726834AbgH0BLK (ORCPT ); Wed, 26 Aug 2020 21:11:10 -0400 Received: from mail-il1-f197.google.com ([209.85.166.197]:53430 "EHLO mail-il1-f197.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726783AbgH0BLJ (ORCPT ); Wed, 26 Aug 2020 21:11:09 -0400 Received: by mail-il1-f197.google.com with SMTP id o18so2944882ill.20 for ; Wed, 26 Aug 2020 18:11:08 -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=NYrrGTRexboki2HLW6RsbGRdLIlrj7zalnOfN9qVvpI=; b=gaLpRcKqK7CGeIhaVCAmmxvDRIEdfM+hw1HFvQ40z4/Z51vmu9ZkTtwdIkeuaiHoa9 0hsS/w33PGVi+boOflz/WE2/Aq3x5+Wk3u3CSuLp9f+pH6BhNsQFpJf2M5P7BhBhOkMF Gud0SOrgsgC/3k2cJUtpZRwAtm33fM3fjEMD+Id3TA+goxlsUTYAD+VOxz4OlzHxpbkK m2h5rCVfbn//eQcHA+XKurbYH+NNeBKG72ukwRkoLrYZRKsLJR3HQFnGBBl/zQzzLJub gVdBVM8XXn1pfkGYeGeW6ztLp+Skjo7BYMqov58AVjLHuO37kCdF1knBtJaFeyHJAI8v ZluQ== X-Gm-Message-State: AOAM530loPozI13lTbhNK79yPQlnuu6FHZhP1hcSNCeiGLOWpjtc5X3T rv3VuMHWynhzdv5OnokLHfYJVHhKyAu/eo1aUpqUVfGrGRE7 X-Google-Smtp-Source: ABdhPJyWTAOtjNbMelzOqWh45HRoneg/M/Ww24g1T1cgnWVaOCUqZJImsQySP/GAtqRaI/vdPOxfZixG9gO6P73jsp0D/qaAudB7 MIME-Version: 1.0 X-Received: by 2002:a92:a119:: with SMTP id v25mr16044253ili.77.1598490668571; Wed, 26 Aug 2020 18:11:08 -0700 (PDT) Date: Wed, 26 Aug 2020 18:11:08 -0700 In-Reply-To: <0000000000004740cd05ac444126@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000007a21a405add19c0b@google.com> Subject: Re: KASAN: use-after-free Write in afs_manage_cell From: syzbot To: dhowells@redhat.com, linux-afs@lists.infradead.org, linux-cachefs@redhat.com, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com, viro@zeniv.linux.org.uk Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot has bisected this issue to: commit c99c2171fc61476afac0dfb59fb2c447a01fb1e0 Author: David Howells Date: Thu Nov 1 23:07:27 2018 +0000 afs: Use fs_context to pass parameters over automount bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=10679fa9900000 start commit: abb3438d Merge tag 'm68knommu-for-v5.9-rc3' of git://git.k.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=12679fa9900000 console output: https://syzkaller.appspot.com/x/log.txt?x=14679fa9900000 kernel config: https://syzkaller.appspot.com/x/.config?x=891ca5711a9f1650 dashboard link: https://syzkaller.appspot.com/bug?extid=f59c67285cb61166a0cf syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10d97d46900000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14eb9fa9900000 Reported-by: syzbot+f59c67285cb61166a0cf@syzkaller.appspotmail.com Fixes: c99c2171fc61 ("afs: Use fs_context to pass parameters over automount") For information about bisection process see: https://goo.gl/tpsmEJ#bisection