From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f200.google.com (mail-il1-f200.google.com [209.85.166.200]) (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 6E5983FB1B for ; Wed, 9 Apr 2025 03:59:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.200 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744171148; cv=none; b=GLCrTsDDrF79TySNSevcXVcwOkIz3tg5n1YR9/+SzJT2Z9kIipgd3bTnyLExPvSevc2PtR+md9/6A/IIAK41oZRY/QUZ1UXb2zFCrLIb/4uViKganGb/yWBIsnP9hZX2dOo2HOSqdK3k9mGFa820bLW/Cod5aRRWTQJRhTq8h6M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744171148; c=relaxed/simple; bh=/hs4mz57QkzD+POEBZdYWPhm87ASHpd3wXi171AOTVE=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=Dp/oZ3EOM2Wuo8b9azDolkk8EEfbNjkHiMlC2KpCca7cZmve2hbuJFvNYMopjDIhxVJbW9mz2foqEsfQSKi4oqWR4OuE/2pc9L16L9AQci/Nb+6fy7lB9lLRrExH6LTXKiX4xcwzsZkEEGRy6sr0RYNJATODaQX4sjlJnDq3ZyU= 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=209.85.166.200 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-f200.google.com with SMTP id e9e14a558f8ab-3d443811f04so60128035ab.1 for ; Tue, 08 Apr 2025 20:59:06 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1744171145; x=1744775945; 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=3Xmbh9ETjMYYnIqDT5ZMvjmgmJyKPg1AP50uzLWCg0M=; b=UKydxtY3JyLXzS4bD/fuom3mnCdbYx3RzYLLPFV9/VB1bLiMU7aegmZTm0dMnV/jI9 hluF/GTye16NfTNwUXdH0q11B2pUZ8slK0iRsDl4cULB/XFFjOQdvZj9RRyYotuV4b3i IJcglh6qoTJF70ksuGLoU/XLNwKBAoI1m8oO0/va7dSTDxKX76cJq3isDf+vI7fCIuj+ qJ5LOdozvHdU+nOwqkU6ITRIylhnIy0MoYjLVbs32giGF7+ijxl3QGPwCCwujDcJZbdX K6u0u7BG7bNLLf/xqyzh8VUoJbe2LZnQIctgiqgmaZSaOlvSNd8h/iIei/DjZOEezZKB rOEw== X-Forwarded-Encrypted: i=1; AJvYcCXBdvzFyy6zOp/lfga7RB9kARJz7RyKsj1LQQBqglBxNeUxHoxzdz2PqDE2oMN1yNmkiRLHx1qNvlNBLho=@vger.kernel.org X-Gm-Message-State: AOJu0Yy6qm4AmcomX79IjNrsRcr2Pt3tyHB4DhNIip+bKz3OibUvVmqT WEpxnEGPg+SehdlMnavBy/XnZlSZYqhUmxWseJ9Mfu4ya/nTW0pwu9bIYS47U6fgYmPc3TZzrQa cQp9L5hsNW5WbHhqz8tR50BtzrSfLukMvq6gj8cVPIWwxlWK8bLh/QGA= X-Google-Smtp-Source: AGHT+IFjLjZ26x0YTu6iNlhJUnYo5KtlBBw/Aia86NjqsznbuOsPBWlCVziPfDJ8T26S/BmRFOyIO3aIpkN0zXTLzeAKegTiXgZq Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1582:b0:3d4:4134:5213 with SMTP id e9e14a558f8ab-3d7b462136cmr8112525ab.11.1744171145539; Tue, 08 Apr 2025 20:59:05 -0700 (PDT) Date: Tue, 08 Apr 2025 20:59:05 -0700 In-Reply-To: <67f4d325.050a0220.396535.0558.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67f5f089.050a0220.258fea.0009.GAE@google.com> Subject: Re: [syzbot] [net?] WARNING in __linkwatch_sync_dev From: syzbot To: andrew@lunn.ch, davem@davemloft.net, edumazet@google.com, horms@kernel.org, jv@jvosburgh.net, kuba@kernel.org, linux-kernel@vger.kernel.org, liuhangbin@gmail.com, netdev@vger.kernel.org, pabeni@redhat.com, sdf@fomichev.me, stfomichev@gmail.com, sven@narfation.org, sw@simonwunderlich.de, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit 00b35530811f2aa3d7ceec2dbada80861c7632a8 Author: Eric Dumazet Date: Thu Feb 6 14:04:22 2025 +0000 batman-adv: adopt netdev_hold() / netdev_put() bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=175db74c580000 start commit: 7702d0130dc0 Add linux-next specific files for 20250408 git tree: linux-next final oops: https://syzkaller.appspot.com/x/report.txt?x=14ddb74c580000 console output: https://syzkaller.appspot.com/x/log.txt?x=10ddb74c580000 kernel config: https://syzkaller.appspot.com/x/.config?x=91edf513888f57d7 dashboard link: https://syzkaller.appspot.com/bug?extid=48c14f61594bdfadb086 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11520398580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16b1323f980000 Reported-by: syzbot+48c14f61594bdfadb086@syzkaller.appspotmail.com Fixes: 00b35530811f ("batman-adv: adopt netdev_hold() / netdev_put()") For information about bisection process see: https://goo.gl/tpsmEJ#bisection