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=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 F2535C433FF for ; Wed, 31 Jul 2019 13:58:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C5BCB20693 for ; Wed, 31 Jul 2019 13:58:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729763AbfGaN6B (ORCPT ); Wed, 31 Jul 2019 09:58:01 -0400 Received: from mail-io1-f72.google.com ([209.85.166.72]:51259 "EHLO mail-io1-f72.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728938AbfGaN6B (ORCPT ); Wed, 31 Jul 2019 09:58:01 -0400 Received: by mail-io1-f72.google.com with SMTP id c5so74883818iom.18 for ; Wed, 31 Jul 2019 06:58:01 -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=FEF26j1D9ZvC1FOg/2C+u2C5uOIP0wZpzYnp05nqnRo=; b=NU4uPfXf1gnj4nrA5uyQpqj2kdaDA6fg1hm/CJc8Fj9GvPHCsqJbaPcsYTI2QV9xhf HUNq4cc9qL6j87BVGRKnnBHk3tjPMZzbRaDbow8vrVQQcteuKfStFMZ7We/K1zXF93B5 jQZ416llyysiRQE8uhy14/r4/m4T7N7zZXDnjQ6ZLgLbmVuuXxkMBkX3K+leNAW3zN9J N4biUV57SlEmAklJ2qmgLpfZay8js6vsbI9rbvE+kjmfhznyFIBcbVkohsmjGt5H635K J9/Uqh+vKQufe/udlol3ZuqAZTLdRBEOYpyniPCkRAKGo9LXPMolujzJL+T12H6uQIRp 7Ydw== X-Gm-Message-State: APjAAAVnlM/HtipS5VyOSZiJswEMwxLhDeA5Se/d2ZYzqLlisIlV9GRn kfTZC7/rC2IRYCFnkwrGu+7oLgk9PQlMEAUYFfnxZf00KcUg X-Google-Smtp-Source: APXvYqx4v+2B+tDfNufu/8jabqDh174TMHU9YBPhF6J18gSgAFOcH5r9L9/kPu54zg3r+7UAdLNDk/GmtNOPv60wADHFIKWDIzGs MIME-Version: 1.0 X-Received: by 2002:a02:230a:: with SMTP id u10mr43840113jau.117.1564581480591; Wed, 31 Jul 2019 06:58:00 -0700 (PDT) Date: Wed, 31 Jul 2019 06:58:00 -0700 In-Reply-To: <000000000000de000a058e9025db@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000005f7805058efa8333@google.com> Subject: Re: KASAN: use-after-free Read in release_sock From: syzbot To: davem@davemloft.net, linux-hams@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, ralf@linux-mips.org, syzkaller-bugs@googlegroups.com, xiyou.wangcong@gmail.com Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot has bisected this bug to: commit c8c8218ec5af5d2598381883acbefbf604e56b5e Author: Cong Wang Date: Thu Jun 27 21:30:58 2019 +0000 netrom: fix a memory leak in nr_rx_frame() bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13b52242600000 start commit: 629f8205 Merge tag 'for-linus-20190730' of git://git.kerne.. git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=10752242600000 console output: https://syzkaller.appspot.com/x/log.txt?x=17b52242600000 kernel config: https://syzkaller.appspot.com/x/.config?x=4c7b914a2680c9c6 dashboard link: https://syzkaller.appspot.com/bug?extid=107429d62fb1d293602f syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16a7c8dc600000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1498cfa2600000 Reported-by: syzbot+107429d62fb1d293602f@syzkaller.appspotmail.com Fixes: c8c8218ec5af ("netrom: fix a memory leak in nr_rx_frame()") For information about bisection process see: https://goo.gl/tpsmEJ#bisection