From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f199.google.com (mail-il1-f199.google.com [209.85.166.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E93904A33 for ; Sat, 28 Jun 2025 05:14:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.199 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751087644; cv=none; b=qVSR1onYMarFQ+FJa9yKHfJO2V4wU9kVc8CrCVR2qrnDk1uV4UhVcbGpu6im2wXfTMB97qcYaFkhVO1hE9TxvoykVaN7EbLnRyERWMloWcCRoer6v5ok1Z4VP7VVTr5JcA+fGQIj64FX8Xh7tsRMackUkJQn7ZWEO80+chyV18E= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751087644; c=relaxed/simple; bh=ImkOohW0xoy7J25xzFN6PO5huhiGY4VN5yzgFbX+u30=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=flVOGsiKo1QFP8Jo9Cb2qOAePSkG8O+evLPRvLmNKbKOAlNh3QiWoHCKaf64w1PNVStEsG9GU4MpJuMY3WBW/Tc7wbPtRg+4KfrUoEZude7uNcphCYmftwkQKjm+OZQgDuDNNN90MIix3Rb+FPNKKRDs5wASUM+EvT2v+It3l2A= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.199 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-il1-f199.google.com with SMTP id e9e14a558f8ab-3df2e89fd03so4890535ab.0 for ; Fri, 27 Jun 2025 22:14:02 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1751087642; x=1751692442; 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=nQtYV1Gyi68LVjdcfdU/eNq3IyRRwC3uv1igzI3erFc=; b=NpWtt9vIug0tHrERtwFAF5tvVzYVffTu/9EqJFfnvxiBiqYUMW4Icw2A/75RWjCY06 PsVKbgvge0G1sGRxCm/3yXjFUD/uXvnd1UTRHLiluLkbA0eLyxMOZxbSSTpLA4xllr5r sU0pS/osLRpLZTwhOpuN155kuQfhxYmZkwmwtMaC+BxyF9lGKCzDHJGxrt2+2RTfRZBG ET7nbRGdKGZ2JxxmUFhzf7dbykjp+dVGBxjWH/6ElBOhB8b7QmjiCU/nVcEJXj0Wit+5 zxO45YMvkmt0+ZOm8SkoSoeaw+KzhyUrg9w9ILisFeFgdXyjBPnAmKYBUMLbf51GLEVX 4anQ== X-Forwarded-Encrypted: i=1; AJvYcCU4BHYCOPDaT5uNn2d/r6CeXZ0kYAaSTwmuPNSHe3Urijdc5KhXpAv12cM2Q3+zxNwCJAXuGbw=@vger.kernel.org X-Gm-Message-State: AOJu0Yx5L5e1aYBHSJkStesBPjAp/OEyAHOFBtWwIFCgymxdOy35ogF1 raWfyTuhJkAaX6iVGILJWn8YvZtUiUKQd7t5Qksx4ornbTWO5a1py/BO0Rbuk2mxUz1f93Z6YMP ZViWqnC11DSKrxK8emk/NhxXOYGvS/yHUuJ4swEzOOV+M/XhXwCMC9x9OjwA= X-Google-Smtp-Source: AGHT+IHhgdgQNjS1nBnWLUNfiv7EE/EHoONqacRJkEf60gWH4jWoK7OhxwwDZCx0AkY52S0u7NOzrVPLBmfL6upFVifarVyjRBcy Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:3189:b0:3dc:7f3b:acb1 with SMTP id e9e14a558f8ab-3df4ab85c3dmr77735685ab.13.1751087642190; Fri, 27 Jun 2025 22:14:02 -0700 (PDT) Date: Fri, 27 Jun 2025 22:14:02 -0700 In-Reply-To: <685e86b3.a00a0220.129264.0003.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <685f7a1a.a70a0220.2f4de1.0007.GAE@google.com> Subject: Re: [syzbot] [net?] WARNING in ip6_mr_output From: syzbot To: bpoirier@nvidia.com, davem@davemloft.net, dsahern@kernel.org, edumazet@google.com, eric.dumazet@gmail.com, horms@kernel.org, idosch@nvidia.com, kuba@kernel.org, kuniyu@google.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, petrm@nvidia.com, razor@blackwall.org, roopa@nvidia.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit 96e8f5a9fe2d91b9f9eb8b45cc13ce1ca6a8af82 Author: Petr Machata Date: Mon Jun 16 22:44:18 2025 +0000 net: ipv6: Add ip6_mr_output() bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13bcfb70580000 start commit: 5d4809e25903 Add linux-next specific files for 20250620 git tree: linux-next final oops: https://syzkaller.appspot.com/x/report.txt?x=107cfb70580000 console output: https://syzkaller.appspot.com/x/log.txt?x=17bcfb70580000 kernel config: https://syzkaller.appspot.com/x/.config?x=58afc4b78b52b7e3 dashboard link: https://syzkaller.appspot.com/bug?extid=0141c834e47059395621 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=138a2dd4580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=171c5b0c580000 Reported-by: syzbot+0141c834e47059395621@syzkaller.appspotmail.com Fixes: 96e8f5a9fe2d ("net: ipv6: Add ip6_mr_output()") For information about bisection process see: https://goo.gl/tpsmEJ#bisection