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 5CEE4C5DF60 for ; Thu, 7 Nov 2019 13:43:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 33516218AE for ; Thu, 7 Nov 2019 13:43:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389478AbfKGNnK (ORCPT ); Thu, 7 Nov 2019 08:43:10 -0500 Received: from mail-io1-f72.google.com ([209.85.166.72]:42462 "EHLO mail-io1-f72.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389041AbfKGNmH (ORCPT ); Thu, 7 Nov 2019 08:42:07 -0500 Received: by mail-io1-f72.google.com with SMTP id w1so1863751ioj.9 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=EFRfID+rQUy3vHH7MnH2eYZJeX20k2uFki0o3J3NUZaZinEf8Mft2GVLIAAmlkHdVy ckixKun8R/bauNG7Y06BtznPNmNGasLMi6/9FQro+glM8I62SUCNZr8/pRPDd0ZpvHEf MdgjvZE2TTJ1O4ZVR/RcGFmhEFDrS+s0EkJSPHxyz5EpP479VRdWEZ8mbrsDUHNVbIX/ 5G/Qjfc46a7M3+52J5V6AqJv2TGRYOgod6s6Kwt1XNFIdkkxXo7sli16sqALtNO116eC wyMYayGigwzziRRSlkXscYDI4pLxPTFjy1X+Bb9z2/ftRDqYJS231St8VV4HHN+qrJUB ldKA== X-Gm-Message-State: APjAAAWs5mWNLEw0YsKZkc1o5NJaVhmL4SoqjDFWWXHI2Wpc/OsMKgDZ PsbxkhrDuj6KHcQcDw2czdENrU0LImM+oG9eFW4fSY6iZRbo 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: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@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