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=-5.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 E2643C4332E for ; Sun, 22 Mar 2020 04:46:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BA4D820732 for ; Sun, 22 Mar 2020 04:46:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726151AbgCVEqM (ORCPT ); Sun, 22 Mar 2020 00:46:12 -0400 Received: from mail-il1-f199.google.com ([209.85.166.199]:41109 "EHLO mail-il1-f199.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725765AbgCVEqM (ORCPT ); Sun, 22 Mar 2020 00:46:12 -0400 Received: by mail-il1-f199.google.com with SMTP id f19so9185228ill.8 for ; Sat, 21 Mar 2020 21:46:12 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=GI4GkIJkW1bKRzFiBtT/34jbKoBVKx5WZcrXpE1yJ60=; b=imYJVRER7wAdyj3SR+DLiyzNW9JIcsjeY58ekfFSAUGDGQpsvKQu6TPh8IQ9Q3bGQc NAw63O+wV/SIVmlnQL5E0dqnXBK5Dbm1jWJdLF81qp4gbqauNzfSel4qmFNyLl1P4vSs IuiXDlJvR+QmUUrnrLurY0zC4qUiCDW4T6yb5WbqRvIkpTYyERE0OPz5Kkz/P0zkGLVu jlykswHkdFvspc5MUn6AZwJZwtayMAgzIb0AcKBu08otPfNOEtUlSNl3W6KVcp/RuCzT tUDypm7cdVkx6hX5qkQZ4IZB1Wa0dDIMaBD/Ne54Y6rCeKqMU4c/yWVwnQ4QeciuaXXB 0b6w== X-Gm-Message-State: ANhLgQ0zLI3Jxvaj9y13AB34jUVWzEuSrIhz1wKEilPG3nt3Tqzj+Rgb wVn6edlfmEx+tUsMiOshFJHIwnw4vEAfhWCj5ymhLQ/FBAAf X-Google-Smtp-Source: ADFU+vsJt5RAxUckaqjG5zRClhUofRtFleFv8EV/BOf4ia/aNTZI5251vcnXqewrTdJPZ9LxYOHay+p6Ei7aFnsYFXYRUdY460/d MIME-Version: 1.0 X-Received: by 2002:a92:9e99:: with SMTP id s25mr14982996ilk.306.1584851942582; Sat, 21 Mar 2020 21:39:02 -0700 (PDT) Date: Sat, 21 Mar 2020 21:39:02 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000000f2eea05a16a1979@google.com> Subject: Re: WARNING: refcount bug in sctp_wfree From: syzbot To: anenbupt@gmail.com, 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: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot has tested the proposed patch and the reproducer did not trigger crash: Reported-and-tested-by: syzbot+cea71eec5d6de256d54d@syzkaller.appspotmail.com Tested on: commit: e76397e4 iterate datamsg list git tree: https://github.com/hqj/hqjagain_test.git sctp_for_each_tx_datachunk kernel config: https://syzkaller.appspot.com/x/.config?x=6dfa02302d6db985 dashboard link: https://syzkaller.appspot.com/bug?extid=cea71eec5d6de256d54d compiler: clang version 10.0.0 (https://github.com/llvm/llvm-project/ c2443155a0fb245c8f17f2c1c72b6ea391e86e81) Note: testing is done by a robot and is best-effort only.