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=-5.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS 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 BDAA6C2BB1D for ; Sat, 14 Mar 2020 02:55:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 957912074D for ; Sat, 14 Mar 2020 02:55:58 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="AuMwZAgm" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726761AbgCNCz4 (ORCPT ); Fri, 13 Mar 2020 22:55:56 -0400 Received: from mail-ua1-f65.google.com ([209.85.222.65]:39493 "EHLO mail-ua1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726443AbgCNCzz (ORCPT ); Fri, 13 Mar 2020 22:55:55 -0400 Received: by mail-ua1-f65.google.com with SMTP id o16so4416719uap.6; Fri, 13 Mar 2020 19:55:55 -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=ZEEnUHwkZMDbVRFi/MzyKhwtIiz6HxIBrFlnIEc6RNU=; b=AuMwZAgmr4riVDa7wdFl65UGbZ4NPGwVyOmXN9FamQpp38FJc9QWyRpPPgavRHu2YA 1Riy2UxhQSpuJoAqXp21QWIwIOKf3fZLRrIbPLriSAcEsDvx01Vvg5V+5061ZkL2Eziu rHLU71OXdXjYyq+SnVaUP6QExNGIkSyzQfnaQW90jWIe8q69/f/wIiBT8QumQdUg83n9 3S+h39Ta5gMlW/aFzjnYn6MhUvC6OoQ+Bxbue5zg9u2tl/DEf593ryyuhKw9y3qxZ9QE PmST6E8EHpIXTDtXLX5XmFBjhvsK2CjS3Ew3vp0yrvZFzPGRigyQCbNZ8blBE2ZbbUM3 4x4w== 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=ZEEnUHwkZMDbVRFi/MzyKhwtIiz6HxIBrFlnIEc6RNU=; b=cMNDCulgd64pBT9VY7+p4dsCjjmxbmHuT71zpfK1yoltoJs8SqHpr9YKsnlIb00Is+ n5+IxJwTbsnJ1KzlmlKNtbIw9Y+kc9jG8MsSS6cLFMqc5bMthn2F0BmLT60TSC8Jckd4 Pshm/MZUHdkRlcWiEg3bqnAutECcDlvjYiYl3l9TKcTOzoTwM+EQYSwWN1YK3xYvsXL+ PX/IHnOv/a3KVagGPcGJHS4uEStP0oGkBf5cy+M1MiNrAXyAR6hH/0BfwvM6heo8IIQ+ sOgA4MsgyKO+u879tgX93z4uHB5wWtE2WFRRhcfSrelNclPDbcdhruBQ3W5GrWvSL0e8 zGdA== X-Gm-Message-State: ANhLgQ3jz2TdBrhbx8l/LUPPiAnJCPdIWdjyKkglCWDIGg/ceFyfkp81 pcVSQOJmPuVMAgv8dH51Ew1MJ1T7VbVaXLMKCRw= X-Google-Smtp-Source: ADFU+vt5HAY1eZRXXey3qByWkrhH5fVmojXJH1hT5Pi05GrivJuyXkpUc6FauOEuTqrm3ZaccjmCXKrzzSVY8dtb7ZE= X-Received: by 2002:ab0:2e91:: with SMTP id f17mr6641066uaa.22.1584154554803; Fri, 13 Mar 2020 19:55:54 -0700 (PDT) MIME-Version: 1.0 References: <00000000000088452f05a07621d2@google.com> In-Reply-To: From: Qiujun Huang Date: Sat, 14 Mar 2020 10:55:43 +0800 Message-ID: Subject: Re: WARNING: refcount bug in sctp_wfree To: syzbot Cc: davem@davemloft.net, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-sctp@vger.kernel.org, marcelo.leitner@gmail.com, netdev@vger.kernel.org, nhorman@tuxdriver.com, syzkaller-bugs@googlegroups.com, vyasevich@gmail.com Content-Type: text/plain; charset="UTF-8" Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org #syz test: https://github.com/hqj/hqjagain_test.git sctp_wfree