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 autolearn=ham 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 4D779C10F25 for ; Wed, 11 Mar 2020 05:32:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 293F02253D for ; Wed, 11 Mar 2020 05:32:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727986AbgCKFcD (ORCPT ); Wed, 11 Mar 2020 01:32:03 -0400 Received: from mail-il1-f199.google.com ([209.85.166.199]:35622 "EHLO mail-il1-f199.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726883AbgCKFcC (ORCPT ); Wed, 11 Mar 2020 01:32:02 -0400 Received: by mail-il1-f199.google.com with SMTP id h18so612523ilc.2 for ; Tue, 10 Mar 2020 22:32:02 -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=wevRqhBz7Ha1ufXj1J5HganeoAQW6JbLBzDxT526K4A=; b=N81UFinEvjQ23BLb3Z8HgOGijpJT8b5tbq+nBZUpG8yCdc2TycNnmrBCmBXrn7KaT1 XJ5uQyrYCXAMthspYzEnXbhrsQ7pmC7ObTSA5+jFGfcpcRrUjNu+JoKVmdPZ0lN59tas LaCqMJzN+t0lMh1FPNCrMnGqrXIC0fcT9k/Hk23+bHoEL9nqYB6eiOPWDipHEP2vJWJp Pc7FF4U4HcNHATE4QmWXepCxn+vt+hmWWFs1zm/K/jbnbdH7G4ffJUri2M0ZyakiL5WZ fQ1E5sX/i7doeiUOMonYfAEIFhP271HBpRMDAOrSBH5WOP4H3IpD2TBa6rBhSWJk5SnE m17g== X-Gm-Message-State: ANhLgQ20ooCrRZhJQCliyTApUvNthiHIlgZHFvcrZps/VDWwHxaIwHk7 4yg1yE7AF5wf9ap86v3kCYIQWPq7TkFkZ5RmIgpa0+CHnqHU X-Google-Smtp-Source: ADFU+vs5AqIDyondsGCpHRqGUbzyITX4Ug9elC3TYXqm2eit9qrpqbl4xt+rQ3f2GwU+70pBRgba2LC0w62AfY1MRyxlthvFVwiY MIME-Version: 1.0 X-Received: by 2002:a5d:9509:: with SMTP id d9mr1407940iom.127.1583904721925; Tue, 10 Mar 2020 22:32:01 -0700 (PDT) Date: Tue, 10 Mar 2020 22:32:01 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000004efb2705a08d8e8e@google.com> Subject: Re: KASAN: use-after-free Read in tcindex_dump From: syzbot To: davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com, xiyou.wangcong@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+653090db2562495901dc@syzkaller.appspotmail.com Tested on: commit: 2c19e526 net_sched: hold rtnl lock for tcindex_partial_des.. git tree: https://github.com/congwang/linux.git tcindex kernel config: https://syzkaller.appspot.com/x/.config?x=bcbe864577669742 dashboard link: https://syzkaller.appspot.com/bug?extid=653090db2562495901dc compiler: gcc (GCC) 9.0.0 20181231 (experimental) Note: testing is done by a robot and is best-effort only.