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 96E86C48BD6 for ; Wed, 26 Jun 2019 10:04:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7866B2168B for ; Wed, 26 Jun 2019 10:04:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727114AbfFZKEC (ORCPT ); Wed, 26 Jun 2019 06:04:02 -0400 Received: from mail-io1-f70.google.com ([209.85.166.70]:38733 "EHLO mail-io1-f70.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725379AbfFZKEB (ORCPT ); Wed, 26 Jun 2019 06:04:01 -0400 Received: by mail-io1-f70.google.com with SMTP id h4so1999880iol.5 for ; Wed, 26 Jun 2019 03:04:01 -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=exl153K25/taUt9Rsw73TloMA0hiX8bAhHaTEHW6ZTA=; b=Z023OaM6qTj9hGNDWsKomaz2Lu2K33XjnF86kQTBhbncqeqg/OtPWNP+bwoKMgIqie DATXR9HGWRaFrWypSR5PCxKbF3nrhJeZ7eS/Le8YyaJUFBw5UH/meMHMYSBiJcf8PGr/ PUDlJqpdADQeTLCDYm9AkZf6TEriB/jrRYCCNwujwXx1hvkXeP9cWGkjQJakwcRL2bBO gCUA3pg0nxxA9NN2xXhqxqWNDEjhMrKo2fZ1evBH+vsjoWz2soXAokiEwaEcQPQF48Wk 6ibWWFOwHMhWgP9i3YUoOo3fQxBsfA/J/MOh10ag7Z/LmYZGhYDfafG24vDCMU0/FD/Q sNJg== X-Gm-Message-State: APjAAAUl5djOHO5YwEH3HqWWC3HQidCt5XozUY69al0dsW8zNPpb60Kl whwtz4ltB5gZDK2keKhZLb/yW39j041RdYBaL6A7Eb23dIUT X-Google-Smtp-Source: APXvYqwjUE5ldaZ0lVaY4C4RiUyQfnHzMpnYbDfKVDsrYcE6TyIzmVuSJ2rh9klHqtLrh4mmTHyypSXUrkxrJ2dOclLlmSpALX3c MIME-Version: 1.0 X-Received: by 2002:a6b:bf01:: with SMTP id p1mr3795081iof.181.1561543441017; Wed, 26 Jun 2019 03:04:01 -0700 (PDT) Date: Wed, 26 Jun 2019 03:04:01 -0700 In-Reply-To: <0000000000000c4e3e058bd5008d@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000001a739d058c372a77@google.com> Subject: Re: KASAN: use-after-free Write in validate_chain From: syzbot To: ast@kernel.org, daniel@iogearbox.net, john.fastabend@gmail.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.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 e9db4ef6bf4ca9894bb324c76e01b8f1a16b2650 Author: John Fastabend Date: Sat Jun 30 13:17:47 2018 +0000 bpf: sockhash fix omitted bucket lock in sock_close bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1555b795a00000 start commit: abf02e29 Merge tag 'pm-5.2-rc6' of git://git.kernel.org/pu.. git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=1755b795a00000 console output: https://syzkaller.appspot.com/x/log.txt?x=1355b795a00000 kernel config: https://syzkaller.appspot.com/x/.config?x=28ec3437a5394ee0 dashboard link: https://syzkaller.appspot.com/bug?extid=55c548ad445cef6063ab syz repro: https://syzkaller.appspot.com/x/repro.syz?x=128ce13aa00000 Reported-by: syzbot+55c548ad445cef6063ab@syzkaller.appspotmail.com Fixes: e9db4ef6bf4c ("bpf: sockhash fix omitted bucket lock in sock_close") For information about bisection process see: https://goo.gl/tpsmEJ#bisection