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 BA80AC5DF61 for ; Thu, 7 Nov 2019 13:43:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9B662207FA for ; Thu, 7 Nov 2019 13:43:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389530AbfKGNn1 (ORCPT ); Thu, 7 Nov 2019 08:43:27 -0500 Received: from mail-il1-f199.google.com ([209.85.166.199]:55663 "EHLO mail-il1-f199.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389040AbfKGNmH (ORCPT ); Thu, 7 Nov 2019 08:42:07 -0500 Received: by mail-il1-f199.google.com with SMTP id n81so2604417ili.22 for ; Thu, 07 Nov 2019 05:42:07 -0800 (PST) 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=vnRsz0/rOqX31qWVqa+jCcqeQTYMdPmUZHcF8We9FRA=; b=iDEbNdKVkd7JlzEUm3DQ2diHY52Bk7mZLw0wD5xW6XJnyDu3f39PdP8WA7w+HT3ZeS 6Wxij07thbj8ydQGH+4F0MSE/ojrDSvH1F/ZornzqR6xnkn1TPrN915SyZht2TRGb3PL yG7pq5JB3JAAIbnKcwJ7pYrJtyxixrDM/1pqfz+j7Bm3VO3K3F28ym6eFTUcDQ/YL9Zx QP3Idecy8Ikla697V4Fk/BLiHTzgm30yW+B1R+9cINBceMlbp8UkbSyFQSNHZq2yGeNX UECYQcdn3GKDyCiPpQplg1hl4YnPYDRNkkp6g2nMYD1SMyE4DIlMjUA9+714x/HTYh8S f5UA== X-Gm-Message-State: APjAAAXzehflLOfchbzAmvtHWQ0xp9vn7RU808njeNxvg/yjsdqNGIQl ThuS8omDLgxZHCxPmP+VxzcxcCUtLtgl54fvSS0LvKkrCKDn X-Google-Smtp-Source: APXvYqxag6ODkk8Wbv8Wdp6mU+iNDO/+EsH5xk9k1x/wiqR1dAXliax/9/yHrkDCGJ9jCF/t7qMAyUhTeT+GGlYdhmUlfnYJ7pvc MIME-Version: 1.0 X-Received: by 2002:a6b:8b02:: with SMTP id n2mr3600626iod.66.1573134126640; Thu, 07 Nov 2019 05:42:06 -0800 (PST) Date: Thu, 07 Nov 2019 05:42:06 -0800 In-Reply-To: <0000000000008d5a360575368e31@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000cd76fb0596c1d41c@google.com> Subject: Re: KASAN: use-after-free Read in _decode_session6 From: syzbot To: ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, dsahern@gmail.com, herbert@gondor.apana.org.au, johannes.berg@intel.com, kafai@fb.com, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, posk@google.com, songliubraving@fb.com, steffen.klassert@secunet.com, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, willemb@google.com, yhs@fb.com, yoshfuji@linux-ipv6.org 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 suspects this bug was fixed by commit: commit e7c87bd6cc4ec7b0ac1ed0a88a58f8206c577488 Author: Willem de Bruijn Date: Wed Jan 16 01:19:22 2019 +0000 bpf: in __bpf_redirect_no_mac pull mac only if present bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1736f974600000 start commit: b36fdc68 Merge tag 'gpio-v4.19-2' of git://git.kernel.org/.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=4c7e83258d6e0156 dashboard link: https://syzkaller.appspot.com/bug?extid=e8c1d30881266e47eb33 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14d42021400000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13d09f1e400000 If the result looks correct, please mark the bug fixed by replying with: #syz fix: bpf: in __bpf_redirect_no_mac pull mac only if present For information about bisection process see: https://goo.gl/tpsmEJ#bisection