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=-13.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 9F480C433E0 for ; Mon, 22 Feb 2021 20:06:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 61C8164E41 for ; Mon, 22 Feb 2021 20:06:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233354AbhBVUF4 (ORCPT ); Mon, 22 Feb 2021 15:05:56 -0500 Received: from mail-io1-f69.google.com ([209.85.166.69]:44542 "EHLO mail-io1-f69.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230099AbhBVUFt (ORCPT ); Mon, 22 Feb 2021 15:05:49 -0500 Received: by mail-io1-f69.google.com with SMTP id v20so3343848iob.11 for ; Mon, 22 Feb 2021 12:05:34 -0800 (PST) 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=pLRhfTwy0FUDr6U+czrEs8kT0CiU0z5KeTk0hw3Qk44=; b=I9bSOHIfBLJwDSsGUHBvXqIW4F9RmiLS18SDHmgXrzIkXsk4NGmbN4KXEvCQMvNlbr KDznspDXPLS/1BTN/wRdgpH/TjCuIdd6cIvrAu5hfw8lz8iIuGshFG0a5+0IGXBq9hM+ vka/dXoFmcS7FcHNaL1o6+TW4ZPE5i3axEZQjazQZiubii7w4Ehgys2j0mHxWdV4BZHA HyhVm4Cl4NeGSnmb2EInRYiXwKtnKI9qv51EfMuUg5SclonSIYt6TgiQ11VUfLWRSfD9 n2kLLDQen+QCCM7yxvuU5du0SWedcE/oYbdHA+WgOdhCIHSjX4DSJg/Fw4H9la/cwrmF kKeg== X-Gm-Message-State: AOAM533wnPkLpeJhVAjedwiJIKW2+pllGJ4IqxJWLyCH6HCYzz19/Zj8 oE6Quhqt4ZWfry+POKolGUtvFP7dkmCav58PtHD55bd8Q2sN X-Google-Smtp-Source: ABdhPJwszLmEf05WJAk7l0wSG1p+UlAXJeVI4fkex5PIO3u7zUVcnSOF4SeEDaLWNi51O4a7o1C+CBhUI8f7on020bFHQ1vhJh9q MIME-Version: 1.0 X-Received: by 2002:a5e:8615:: with SMTP id z21mr9597031ioj.132.1614024309299; Mon, 22 Feb 2021 12:05:09 -0800 (PST) Date: Mon, 22 Feb 2021 12:05:09 -0800 In-Reply-To: <49ac93fc-57b0-1f94-c43e-f9ab9a3913af@toxicpanda.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000009d5c1205bbf251b9@google.com> Subject: Re: KASAN: use-after-free Read in nbd_genl_connect From: syzbot To: axboe@kernel.dk, josef@toxicpanda.com, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, nbd@other.debian.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-and-tested-by: syzbot+429d3f82d757c211bff3@syzkaller.appspotmail.com Tested on: commit: 2b31ee47 nbd: handle device refs for DESTROY_ON_DISCONNECT.. git tree: git://git.kernel.org/pub/scm/linux/kernel/git/josef/btrfs-next.git nbd-kasan-fix kernel config: https://syzkaller.appspot.com/x/.config?x=8ff2a923e3615ffe dashboard link: https://syzkaller.appspot.com/bug?extid=429d3f82d757c211bff3 compiler: Note: testing is done by a robot and is best-effort only.