From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6B9AF187C for ; Sun, 13 Aug 2023 08:26:38 +0000 (UTC) Received: from mail-pj1-f72.google.com (mail-pj1-f72.google.com [209.85.216.72]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 19B44170D for ; Sun, 13 Aug 2023 01:26:37 -0700 (PDT) Received: by mail-pj1-f72.google.com with SMTP id 98e67ed59e1d1-2685bc4f867so3770024a91.0 for ; Sun, 13 Aug 2023 01:26:37 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1691915196; x=1692519996; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=lHx5pQ865kQdSV3oc1VTb4RJPNDKiF3qG2AurMf0uII=; b=TIcWZqb5rp2N8UcKghv3ko0eDpLp7eWC4F6lV5tGleLwzdeLgycmFu2iymVTi9C+1W K+sW3/rBLHJ4H1p8u0Xu0rkQ4IWaJ+XGL4HnPyA/kfV3d5+ZX7Xh1Eglj+Z1G0u9iSVl EJdMHODdBGx2kPOeyW5WRJMdUqVIawZJD5hgAte9LXA1DiDC1sOt//8dpKghQFYGn+Eh 1jV2HYq2SgkVZ2jHH3tXFvH8Y5bHetOlZkzqd7ENOU6e+0N5kCkJ3RIQNHhoSSIeA+mb ajI4+Gq/iJ6nLzwhwpHMTUj5XobAnLeKrCEcQJUmWzgnEW1CC401f/O49gZ7qQQTrND0 7HOg== X-Gm-Message-State: AOJu0YwFb3KtLIhk6SCtL+aWVjwDKGTPmoZb0zL605fjl/SgwQR7uKbI HZ2A/H0WOOBwBWzuef0ZKqi2z0uGaLYZCaLGpKyB4FDDP47F X-Google-Smtp-Source: AGHT+IGYYglPH140FdNSx5GvsuVJ9WH70GFQwHtLb3I+yri16v2vev+Mrj3Md4vQp1vtP9PmR5/bEgHfq46nCDEv22uWoOcw8OKQ Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a17:90b:ed5:b0:263:f16:3192 with SMTP id gz21-20020a17090b0ed500b002630f163192mr1355601pjb.3.1691915196654; Sun, 13 Aug 2023 01:26:36 -0700 (PDT) Date: Sun, 13 Aug 2023 01:26:36 -0700 In-Reply-To: <00000000000090196d0602a6167d@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000496a0f0602c9b43c@google.com> Subject: Re: [syzbot] [net?] WARNING in unregister_vlan_dev From: syzbot To: amir.hanania@intel.com, davem@davemloft.net, edumazet@google.com, hdanton@sina.com, horms@kernel.org, idosch@idosch.org, idosch@nvidia.com, jeffrey.t.kirsher@intel.com, john.fastabend@gmail.com, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com, vladbu@nvidia.com Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=0.8 required=5.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL,SORTED_RECIPS,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net syzbot has bisected this issue to: commit 718cb09aaa6fa78cc8124e9517efbc6c92665384 Author: Vlad Buslov Date: Tue Aug 8 09:35:21 2023 +0000 vlan: Fix VLAN 0 memory leak bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=12ac8d6fa80000 start commit: 048c796beb6e ipv6: adjust ndisc_is_useropt() to also retur.. git tree: net final oops: https://syzkaller.appspot.com/x/report.txt?x=11ac8d6fa80000 console output: https://syzkaller.appspot.com/x/log.txt?x=16ac8d6fa80000 kernel config: https://syzkaller.appspot.com/x/.config?x=fa5bd4cd5ab6259d dashboard link: https://syzkaller.appspot.com/bug?extid=662f783a5cdf3add2719 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1604a23da80000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15261ffda80000 Reported-by: syzbot+662f783a5cdf3add2719@syzkaller.appspotmail.com Fixes: 718cb09aaa6f ("vlan: Fix VLAN 0 memory leak") For information about bisection process see: https://goo.gl/tpsmEJ#bisection