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 B4CF8C04A68 for ; Wed, 27 Jul 2022 18:58:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233962AbiG0S6I (ORCPT ); Wed, 27 Jul 2022 14:58:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37272 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234515AbiG0S5s (ORCPT ); Wed, 27 Jul 2022 14:57:48 -0400 Received: from mail-io1-f69.google.com (mail-io1-f69.google.com [209.85.166.69]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 839CCF7D for ; Wed, 27 Jul 2022 11:02:13 -0700 (PDT) Received: by mail-io1-f69.google.com with SMTP id 130-20020a6b0188000000b0067bd829cf29so6331267iob.17 for ; Wed, 27 Jul 2022 11:02:13 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=75VrUxYfW5kJMnHvbElcHjjSxM6mLyjVzzf+hp4INcg=; b=GE5Z+Z16+3cm84Adsv+mOwxMBuY/ENz9IwRDAdchSl/i7DDLCzKHyrxV/PTc8o7oDo dEPA8rFUzrN8V3bSd590lZTzeW0O8VX3tOOzpKdwFIi+54Ow28KIcMob7mvhZxmx8F5D vAWXnyY84+IpSG2kX/C2rHO0nDxhSKHRu1JoYZ0fDRs85rsGL6NvZJYPN6G5nxPo7IR7 pAvFRoy5OvDCUwEiMNFh1DqCLzHFREsvU/j+uQO5Zw/2C8Xtl/pm/eYIRMsMyRk18EBX nTNoA6NOwd78O/i5cecHtHzDNxy21u29mOxHz7THi5RcNZU2uYN28fEqTldaBw1wGsl6 yFyA== X-Gm-Message-State: AJIora8B/Ev8Gl3Rnsvl/GfItLt6NWPFYxzNBGmzVrZxHToCtXuqMunf RhSFKu4oMU+igKwQ2VRVP87Rbq6lUILd9GP8hhls2KVNEEiC X-Google-Smtp-Source: AGRyM1tlDxcDEOua9jBoleEWwnBUKVrPzMUmWycT3IqeTpqEFnqtf2Ygnq4QCYQ6H5DhixcquI0ZMf/xL7kfbLAOF2QKHKoE/e/x MIME-Version: 1.0 X-Received: by 2002:a92:db4a:0:b0:2da:ac43:947f with SMTP id w10-20020a92db4a000000b002daac43947fmr9440060ilq.174.1658944932927; Wed, 27 Jul 2022 11:02:12 -0700 (PDT) Date: Wed, 27 Jul 2022 11:02:12 -0700 In-Reply-To: <00000000000026269d05e4c9fe23@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000006de26305e4cd37ae@google.com> Subject: Re: [syzbot] KASAN: use-after-free Read in exit_mmap From: syzbot To: Liam.Howlett@Oracle.com, akpm@linux-foundation.org, arnd@arndb.de, bigeasy@linutronix.de, ccross@google.com, david@redhat.com, ebiederm@xmission.com, liam.howlett@oracle.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, vbabka@suse.cz, willy@infradead.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 e23cb70bcbef5c189790042d1d6d89e33308c386 Author: Liam R. Howlett Date: Tue Jun 21 20:47:14 2022 +0000 mm: remove the vma linked list bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1078f202080000 start commit: cb71b93c2dc3 Add linux-next specific files for 20220628 git tree: linux-next final oops: https://syzkaller.appspot.com/x/report.txt?x=1278f202080000 console output: https://syzkaller.appspot.com/x/log.txt?x=1478f202080000 kernel config: https://syzkaller.appspot.com/x/.config?x=badbc1adb2d582eb dashboard link: https://syzkaller.appspot.com/bug?extid=99551d8b4d180f6cb1c0 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=117dc816080000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12695b26080000 Reported-by: syzbot+99551d8b4d180f6cb1c0@syzkaller.appspotmail.com Fixes: e23cb70bcbef ("mm: remove the vma linked list") For information about bisection process see: https://goo.gl/tpsmEJ#bisection