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=-1.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 24E28C433E0 for ; Tue, 30 Jun 2020 03:48:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EA4F520768 for ; Tue, 30 Jun 2020 03:48:36 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="YV4Bczfd" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729254AbgF3Dsf (ORCPT ); Mon, 29 Jun 2020 23:48:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39432 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726686AbgF3Dse (ORCPT ); Mon, 29 Jun 2020 23:48:34 -0400 Received: from mail-il1-x134.google.com (mail-il1-x134.google.com [IPv6:2607:f8b0:4864:20::134]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C2706C061755; Mon, 29 Jun 2020 20:48:34 -0700 (PDT) Received: by mail-il1-x134.google.com with SMTP id k1so15288840ils.2; Mon, 29 Jun 2020 20:48:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=yAZduYcEKm4wiOoLB6wnk1hlMRtoPsLgtKlyIvlMUUk=; b=YV4Bczfd6bRQ9u+eV78DMYCoXm1i8z9d/3fuFQu+vwiA2aPI3YZ8WhC292HaKBRfNP RhhGynlz+72LZnDTTao74cspJhBAu2YxIMiWQ9DhiT/yP3HuVYfdJDj26IHtkZJUuMkj 2KhwW3iVCq6490GoCXVJh6wortfVW1+8f6nIw30m8JeXLBOqhVEwQ2vnmO3eKWP5ujDP +q06XRpDXWU9ea+yNtouGjdWF43ssCft2kSjUrF8flgz9DeUB5wZG+1+OQ9DzLc8YgeW bFyiRbF0fEQEk6wF2r/i3P1SOKsfsunzwwSDwTGwudBthnqM1VNsRtafBDlx6wHaH1Pr MCQg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=yAZduYcEKm4wiOoLB6wnk1hlMRtoPsLgtKlyIvlMUUk=; b=O8IBU5Pmd2QjNqvLPsX0IPOprGGPWtvWVnpyIh6gZKV2bGBD8Q5ZfrDtQYttRPubgz wclATHuB7ejw4SP7K/Wv4YKMm7aAmVUPSF85SwdZBg0ZbVfneQmLyrTcsRjTo4GNZBZd iRzfxiH+36h4DbhxcqOkOtpQCt7FpP7x2xYNq0nE+Oc2xzP2LWsl3xthgBLGG74V59TP QGAlt/d9MmUr6iB6YrqV35/hCAmI8DjDjyfNBc+DSyt+a3VeA8lt7uhXFyQW7sYwTcx5 Uf/YppLT4pOlCnmXHqN1OVpSILlW7/PXzU0D7Y3y4R76oDIjSyV0jAU3TqBF5Satn5nk AEKw== X-Gm-Message-State: AOAM533CtexwywBOIPNpym45kE72Xk3sptPywaQTcKlLXbOPZwRlf0Gt AWv4skIs91aDMAxLj5mRBK4ThO+5jzUDx3EPpRE= X-Google-Smtp-Source: ABdhPJyjkFEj14utEUhY6LxqYobmK3bsy7i35K8spE7FGJtI1qZq51d4GS5sK0tLkpXIkrKSpdNa3biT5pTxesm4ysI= X-Received: by 2002:a92:bb0b:: with SMTP id w11mr756075ili.238.1593488914196; Mon, 29 Jun 2020 20:48:34 -0700 (PDT) MIME-Version: 1.0 References: <000000000000744a6805a93b969a@google.com> In-Reply-To: <000000000000744a6805a93b969a@google.com> From: Cong Wang Date: Mon, 29 Jun 2020 20:48:23 -0700 Message-ID: Subject: Re: KASAN: use-after-free Read in devlink_get_from_attrs To: syzbot Cc: David Miller , Jiri Pirko , Jakub Kicinski , LKML , Linux Kernel Network Developers , syzkaller-bugs 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 #syz fix: genetlink: get rid of family->attrbuf