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=-13.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_IN_DEF_DKIM_WL 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 6E9BEC4332F for ; Wed, 22 Sep 2021 01:57:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4660D60230 for ; Wed, 22 Sep 2021 01:57:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232619AbhIVB6b (ORCPT ); Tue, 21 Sep 2021 21:58:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53030 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230433AbhIVB6a (ORCPT ); Tue, 21 Sep 2021 21:58:30 -0400 Received: from mail-qk1-x730.google.com (mail-qk1-x730.google.com [IPv6:2607:f8b0:4864:20::730]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DF0C6C061574 for ; Tue, 21 Sep 2021 18:57:00 -0700 (PDT) Received: by mail-qk1-x730.google.com with SMTP id 194so4018127qkj.11 for ; Tue, 21 Sep 2021 18:57:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=dNeVX2/AAU67gCQ2hLPQYiycq7pGX1S/cb+hnnulRMw=; b=Hl16FOFhcPKOG3yu6QEh+1sf7oVY/P5Z6rCp241WQfOqSMZID/pCn1e66RwsiAj6+p mQKSvbAI+fBwkeW59i9hjFY99JHNIklaNSmeFVpWLb+iZqsxPShD0uwDwyO29txT0tf2 vvV4brKiBtJ1KNRnM9cCx2B24t7Pe9udL7/qbQIOuNDk7uzde6GVNRKNSP2Zl4UTHwP9 eWX0ma/R8aurBgiNUi3tQu9HWfwU+lzyMk8quwUEvwGukDHqFo7HRCPJ+WwBYB6gTZpE zcEV7F+KyARmpAhcwZzvbja6nuSNnbw2EHcO/vnhdxGxp9eg8Ebs+SBqcS16o0E14T7b f0bg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=dNeVX2/AAU67gCQ2hLPQYiycq7pGX1S/cb+hnnulRMw=; b=6IM+xYq/y2SrUWPEU0wvuaBk80hEpj7HY/4B0cYDxw4jm5lEDvBHlyv/2ZRqxxMa/f vz/g51GDh4ybHIOBNtJs1g86oR3G/+p8mnKeEwup8XAiwIa5wMMIbRs+jA9E1O8Gax13 D7oVKZqZugR5Qh/Icxl4mS2kA0R80yfPnmMLgleWhZ/nMD9yTouK9EzqircwrQj9zSJQ G13tYEYQmFYLl/tiCWtciflVH8Z0M5jctdaKiBkEqc+3qLwhLNwBtyfGLSfiAar8OY6B pBpAiHLcur2zxKpZQc/dOlr61+suXio5opR7ETPBBZD7vcSdNBee4bHjLHDd17pJ6IHw Fmbw== X-Gm-Message-State: AOAM5322w4k8RAR0jFSwriipeNAi6QACx65GY1jh46r9ZARJ0yPw5XGH 3IeD+dz72RmwW7FpyTmfmHGP3PW2DT37/NNOLNIamA== X-Google-Smtp-Source: ABdhPJyXlKkrBRzP6q/7fl+IpzJt5IeM7h8bSIaNp6nmoNn0IbOQBmLhN0QxQ/wn+OIjISZduG5Xy0ElJHTvCUrXLpw= X-Received: by 2002:a5b:783:: with SMTP id b3mr38459854ybq.328.1632275819299; Tue, 21 Sep 2021 18:56:59 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Eric Dumazet Date: Tue, 21 Sep 2021 18:56:48 -0700 Message-ID: Subject: Re: KASAN: use-after-free Read in tcp_write_timer_handler To: Hao Sun Cc: David Miller , David Ahern , Jakub Kicinski , netdev , Hideaki YOSHIFUJI , Andrii Nakryiko , Alexei Starovoitov , bpf , Daniel Borkmann , John Fastabend , Martin KaFai Lau , Linux Kernel Mailing List , Song Liu , Yonghong Song Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Sep 21, 2021 at 6:43 PM Hao Sun wrote: > > Hello, > > When using Healer to fuzz the latest Linux kernel, the following crash > was triggered. > We have dozens of such reports provided already by syzbot. If you do not provide a repro, there is little hope.