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=-3.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,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 0CB38C433DF for ; Sat, 13 Jun 2020 17:52:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D8ABD20789 for ; Sat, 13 Jun 2020 17:52:21 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="EUObILvw" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726335AbgFMRwV (ORCPT ); Sat, 13 Jun 2020 13:52:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52474 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726277AbgFMRwV (ORCPT ); Sat, 13 Jun 2020 13:52:21 -0400 Received: from mail-io1-xd30.google.com (mail-io1-xd30.google.com [IPv6:2607:f8b0:4864:20::d30]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D1BF6C03E96F; Sat, 13 Jun 2020 10:52:20 -0700 (PDT) Received: by mail-io1-xd30.google.com with SMTP id x189so4556771iof.9; Sat, 13 Jun 2020 10:52:20 -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=zohJCjdH5WGCVYNdwZ7CTrdR3aOqxAG5fyOBK5BztPc=; b=EUObILvwjkSPfOGbLkzWJI+bN4YkEE1QMRNu6obBM54ATHFDLMaR8jcldK29nUeBLh 4jdNSXAntcPwcBPMW19IVFfCQ3b6eT4uMd1knpz+5Ym01z2ht+dS9XmMBhriBt1bYkrR 8F14Hp8FNOGHuKK5kNoflJa0hQWBtXrgbTWKKXH8T/jvf3Z2y78fHcHAtSXevXhpOR3c rbqd1cY0S8jO+i4iDRSWSaUlH3vJRTdlPWA3FDrc6/oKEnJdzCBc8QcBrbFuNgbIxlRW AW8PKX2mdWIEVMKvBQv2Fn7hp6tSkaO+KfMclXgQfPHTCYQGmAyZ1IGzqKAJgAQEI5eV gM9A== 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=zohJCjdH5WGCVYNdwZ7CTrdR3aOqxAG5fyOBK5BztPc=; b=KF35/U6aUqUoNswvXKQO0aqKnirASX28D6HBITnDpAmGL63A3EuKz3qOXA6t4Qi4cI IPOFmfrlAdOCVaY1tOfthky1hX0EYcLEm8Zi/8wowugJR+7eqyPRLI92Vf4HNn28POAL Knfk5YKMcBAHKsa0Yio7cK+nM7JlEXJFy1baGo8NGk+c41KotDu7uPDivQfoIsafiQjN PO7c8KOY6IbzlJK4iDC3xBjJFdYzORpR9mcm92WaPpedj5ySRS2MUNjg0ohFHw4V63qx m9OtA9Wuq4NrarQVMsfO7Vy0bmBMOIRVZ9JzeSBG/LUpG17inzAA45YLN+60AEug7qGZ Xh7Q== X-Gm-Message-State: AOAM532fGg46vEv7jzSOOGtoAJ0Wguh7zh+wG3YOhRN1QdsTQF2QZjT0 DIUqZwjeaoH8Z5Ji8Y08Iv5xHB+Fqb+3inBCxfM= X-Google-Smtp-Source: ABdhPJwjY/vl6qjusNuTDwyuBK/oHqui9HUITvTM3CJWb9devaQE+o7GXcDRCoU1S6cljuvkxQ/n7AArm90xf+58W1A= X-Received: by 2002:a05:6638:216:: with SMTP id e22mr13883777jaq.16.1592070740031; Sat, 13 Jun 2020 10:52:20 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Cong Wang Date: Sat, 13 Jun 2020 10:52:08 -0700 Message-ID: Subject: Re: [Crash] unhandled kernel memory read from unreadable memory To: Peter Geis Cc: "David S. Miller" , Alexey Kuznetsov , Alexei Starovoitov , Daniel Borkmann , Linux Kernel Network Developers , bpf@vger.kernel.org Content-Type: multipart/mixed; boundary="000000000000ead67105a7fadaa9" Sender: bpf-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org --000000000000ead67105a7fadaa9 Content-Type: text/plain; charset="UTF-8" Hello, On Sat, Jun 13, 2020 at 5:41 AM Peter Geis wrote: > > Good Morning, > > Last night I started experiencing crashes on my home server. > I updated to 5.6.17 from 5.6.15 a few days ago but I'm not sure if > that is related. > The crash occurred four times between last night and this morning. Yeah, this is known. Can you test the attached patch? 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