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=-9.5 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 6BA83C07E96 for ; Thu, 8 Jul 2021 14:44:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 50544610E5 for ; Thu, 8 Jul 2021 14:44:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232017AbhGHOri (ORCPT ); Thu, 8 Jul 2021 10:47:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52866 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231976AbhGHOrh (ORCPT ); Thu, 8 Jul 2021 10:47:37 -0400 Received: from mail-ot1-x332.google.com (mail-ot1-x332.google.com [IPv6:2607:f8b0:4864:20::332]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 42909C061574; Thu, 8 Jul 2021 07:44:54 -0700 (PDT) Received: by mail-ot1-x332.google.com with SMTP id i5-20020a9d68c50000b02904b41fa91c97so1663520oto.5; Thu, 08 Jul 2021 07:44:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=F/Awx1Vy2NafahXTtsnNysIQcjAXLo83SmFI5Ze6190=; b=X2HAfGRyLnWiW354cxtjdeOSW0l6EWAOj897IYPhwDEhXdfBMBMWpcB2mbsHD5eYrB 2OLCQSwEme5sQ3zVp765w11BYdfcLRw1xklWreudoB44N8eJPTkehIXRu8hl5RDQYYIO CxCzIBsQSY/eY5J24DarPG0ysUvF4/z2LatfGLLp14pL4lJ4e4Toc9xrVwufBidIOmAH NJU8cEdCSpk7yHCBgQqVEzMYX8n7Q7E3KtafPenOfIKsSiiz17p3qJ6ussakPQzehhWv gMvaC0gmhSIgm6yG8CieDX4M+3y6qdrEtr7MT5zUtmiBDgtKb7ej5XYZb0y+s745jW9l fU7w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=F/Awx1Vy2NafahXTtsnNysIQcjAXLo83SmFI5Ze6190=; b=DX7t6zTeS9kth/BBLF5vIXADQBAPMK1hp7orkGp/Z62zI5NwnwgIMPUL1AUiWC/wLa ay+4SqsZtE3Lsuv36fRHok2DCSKCZEQg7wfzsjOk1ML6bOZM0b317O43wBkEtNzK0Jea lky7Z2JTbfBEYVQiZl5+G6t6w5UkUToFfEAuBZibyjifcYpwZ04jZoyLpF5bm6bGP9T1 zmhh9yL/r1Of8/mX+uJH1K4k5Ym9bAVZBSxCdr/6qLBjTqYnp0Tnr7mkaIhEVrN35oQd 0rW45vRj+Bt5K3ieunfqwBRmVMJVXtsDvNOtaR6wMt3nb3wf5T7ryUaHaKKIZXqlAYXj VyEQ== X-Gm-Message-State: AOAM530C9OtSipeOl/toCrZeoKTdcyW5adpElEbZuxSpqPsDudb69KoM MarL2ytc0we9tuvjvmuWCcw= X-Google-Smtp-Source: ABdhPJy3WMsXEufiA4YpxDjQhZcklIxgAuYy6pYCM8r86lpKnwJ1fUfkwTBPLIP57e+XI4Ufveg/8w== X-Received: by 2002:a05:6830:2497:: with SMTP id u23mr6996108ots.344.1625755493710; Thu, 08 Jul 2021 07:44:53 -0700 (PDT) Received: from Davids-MacBook-Pro.local ([8.48.134.38]) by smtp.googlemail.com with ESMTPSA id m1sm522039otl.0.2021.07.08.07.44.51 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 08 Jul 2021 07:44:52 -0700 (PDT) Subject: Re: [PATCH bpf] bpf: fix for BUG: kernel NULL pointer dereference, address: 0000000000000000 To: Jesper Dangaard Brouer , Xuan Zhuo , bpf@vger.kernel.org Cc: brouer@redhat.com, "David S. Miller" , Jakub Kicinski , Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Martin KaFai Lau , Song Liu , Yonghong Song , John Fastabend , KP Singh , Jesper Dangaard Brouer , netdev@vger.kernel.org, Abaci , Dust Li , David Ahern References: <20210708080409.73525-1-xuanzhuo@linux.alibaba.com> From: David Ahern Message-ID: Date: Thu, 8 Jul 2021 08:44:48 -0600 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org On 7/8/21 4:26 AM, Jesper Dangaard Brouer wrote: > > Thanks for catching this. > > Cc: Ahern, are you okay with disabling this for the > bpf_prog_test_run_xdp() infra? yes. > > I don't think the selftests/bpf (e.g. prog_tests/xdp_devmap_attach.c) > use the bpf_prog_test_run, right? > > Acked-by: Jesper Dangaard Brouer Acked-by: David Ahern