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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8AE12C433FE for ; Tue, 21 Dec 2021 20:03:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230350AbhLUUDL (ORCPT ); Tue, 21 Dec 2021 15:03:11 -0500 Received: from mail-io1-f71.google.com ([209.85.166.71]:43926 "EHLO mail-io1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231327AbhLUUDL (ORCPT ); Tue, 21 Dec 2021 15:03:11 -0500 Received: by mail-io1-f71.google.com with SMTP id j13-20020a0566022ccd00b005e9684c80c6so9671109iow.10 for ; Tue, 21 Dec 2021 12:03:10 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=8iSm/uBCJS86MMzYSjFmW+WAPKaAxHZfRlpQj+zoC0w=; b=fl/y4ohcw+hh+jAUabj3hjcki1/FzfXGmxAcyeDKA9tz3c948WFnQyORIh+st+S0os k88H7JIPieYyNJAqHXwrwoT+Jz5qnLdoegjahE5gnxGkvv4luOkB7E9shismfSuINMmZ 6TvUMRiKZpgfBKrYv1u5gDyH/uj/P8ZW1pMYKwDRvmqll8p54C9qE9Nmpg4XtMgaT4TI UgseMXuPV8J+Ge+2soe3RvVVywa8siW+OTz3cJydvyIlFu3ZRel8tGivoXSFAcSHHIEX IPc5GWWLAjhvElDoJ6ZsaAM63NMlU49I8PLCJ2TkLXkoymqsLGb8Y4w2wroL4Zg3K4CW 3cBA== X-Gm-Message-State: AOAM532vys0F5858ArIK5ltmv/dZrFRUDkzaBHXtDdjDJaNCdcWlXeI8 RLXzXtRuvUaX0ghEb8CA/LJABleG+ozTOHviCde/4lV/njwJ X-Google-Smtp-Source: ABdhPJwBGif4rE5qZfX9H5rQEEUY/wa5xt8kUHMqK4v6JPgw1H7L9BJMJGq439Fy7XcYqKFPEGMYB7MBEEY/tZhlGymGgb4m2tQH MIME-Version: 1.0 X-Received: by 2002:a05:6638:1410:: with SMTP id k16mr3199061jad.253.1640116990561; Tue, 21 Dec 2021 12:03:10 -0800 (PST) Date: Tue, 21 Dec 2021 12:03:10 -0800 In-Reply-To: <000000000000c54420059e4f08ff@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000009cd20305d3ad7e8d@google.com> Subject: Re: [syzbot] WARNING in dev_change_net_namespace From: syzbot To: andriin@fb.com, ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, dsahern@gmail.com, dsahern@kernel.org, ebiederm@xmission.com, edumazet@google.com, eric.dumazet@gmail.com, fw@strlen.de, harshit.m.mogalapalli@oracle.com, hawk@kernel.org, jiri@mellanox.com, johannes.berg@intel.com, john.fastabend@gmail.com, kafai@fb.com, kpsingh@chromium.org, kuba@kernel.org, leon@kernel.org, linux-kernel@vger.kernel.org, marcelo.leitner@gmail.com, mkubecek@suse.cz, netdev@vger.kernel.org, roopa@cumulusnetworks.com, saiprakash.ranjan@codeaurora.org, songliubraving@fb.com, suzuki.poulose@arm.com, syzkaller-bugs@googlegroups.com, tonymarislogistics@yandex.com, will@kernel.org, yajun.deng@linux.dev, yhs@fb.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org syzbot suspects this issue was fixed by commit: commit f123cffdd8fe8ea6c7fded4b88516a42798797d0 Author: Harshit Mogalapalli Date: Mon Nov 29 17:53:27 2021 +0000 net: netlink: af_netlink: Prevent empty skb by adding a check on len. bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=168acc95b00000 start commit: 990f227371a4 Merge tag 's390-5.9-2' of git://git.kernel.or.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=21f0d1d2df6d5fc dashboard link: https://syzkaller.appspot.com/bug?extid=830c6dbfc71edc4f0b8f syz repro: https://syzkaller.appspot.com/x/repro.syz?x=101761e2900000 If the result looks correct, please mark the issue as fixed by replying with: #syz fix: net: netlink: af_netlink: Prevent empty skb by adding a check on len. For information about bisection process see: https://goo.gl/tpsmEJ#bisection