From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f197.google.com (mail-il1-f197.google.com [209.85.166.197]) (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 0FC2C2E62B for ; Sun, 19 Jan 2025 03:30:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.197 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737257409; cv=none; b=nclaASNSkVM3mfIKT+97JCJZDFfWbugkLx3iXkRGbNs9U8gDAvfRbxrAPYItMh2lnUurpEXkPjI/SZgXgsmmilJpSosphAeiK8kDPESDkhfapbBtRAE7EIExBDvbgfjnl4oRp7pLPVCkLOYLLBxua0Rs9vkDOyIfry22fxAIy7g= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737257409; c=relaxed/simple; bh=R17tz9jTIz1Ly5a1JjqCDF6XUib/2K548mo2YYCoDn4=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=m+vjtpSjOsJaEjTh49Wh4FRSlR6+4IEY+3SMLhg3rEjcmcyb4XVVRTsbb6SLvlsLbULXeceoZbyr9JqTyFuffeunhR43aPgpTZvYIjcbcwxTUX4sbokRkfNlIrRPDkKKRn8cP7grIk3OZj+Zbgu2VHcnxzo7SlLJtzgiuMXRB7Q= 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=209.85.166.197 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-f197.google.com with SMTP id e9e14a558f8ab-3ce8db7c342so69396885ab.3 for ; Sat, 18 Jan 2025 19:30:07 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1737257407; x=1737862207; 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=SWsyy0echFvhCOXk6UqZDrewCPu/2A7VwXO4EvHyyEk=; b=Gh9TuhE5NLCqfbg3swGT4CQmGH7DyhlLpyeAyfDrlQRPrpSOufDgDu4TwAXuQSHu4z IK6PgS3te6woLDQ7u6yMgWUuODVLn/sCQdMe3Rv4saSid7eh5+1etWao4MhlA5J6xV1U dijnnperQYtoDoJuTGbB1mNjafyad+2/hvMbwihRfGr7ZIDAEhC1Su5FbTZTNpKDzghM NG0NTC0iplbfGKsu+kumAkd+JHDYvVzWhodC0VdKZnHlCYlAJCaTr3gSvQ8kqJmwZHuy Jz7eHM1MRWvNM+uA3UdCfyQ+DVdZgHiG8AAfAW5UoUb4o5ZtoQT+uKT7QFgRQTFV7qiN NXgA== X-Forwarded-Encrypted: i=1; AJvYcCXatTHBBcfKup2jfMfn9IGJMUmfcPF89cBXr2XlnADp8QKW922fQPRP2kMak5pj4Q7rIFax7f6EHeDIsCk=@vger.kernel.org X-Gm-Message-State: AOJu0YyjIkLmvjnsnbhTthzQ4jM4VDTtfj2y1F61KV/X+uD+SI4irt7e H5jAjoyb4X/XjZWegHOkbypqGZ2JCIGK+sklXtyl+NN44Q8MFDC+3dJp10ln/PaLLuVrfJRJ9F2 x/8z1gqhVrlZesFf/uEsf91xapbbgpMIzI5ICFHuXLcGBeximHvxIjKQ= X-Google-Smtp-Source: AGHT+IGGK8tMQ39pJquQVJAHrlu0Qd2zcNFM2qw4Pkf6LTJkvyfB0vXDtlGxPQ+ZU0towfHW9S7CUPs5785dmnEaev8e6vxN+XDL Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1d8b:b0:3ce:78ab:dcd1 with SMTP id e9e14a558f8ab-3cf7449415bmr66839475ab.19.1737257405664; Sat, 18 Jan 2025 19:30:05 -0800 (PST) Date: Sat, 18 Jan 2025 19:30:05 -0800 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <678c71bd.050a0220.303755.0043.GAE@google.com> Subject: Re: [syzbot] [media?] KASAN: slab-use-after-free Read in dvb_device_open From: syzbot To: eadavis@qq.com, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-by: syzbot+1eb177ecc3943b883f0a@syzkaller.appspotmail.com Tested-by: syzbot+1eb177ecc3943b883f0a@syzkaller.appspotmail.com Tested on: commit: 4f88ca5c media: dvbdev: prevent double put of dvb device git tree: https://github.com/ea1davis/linux mdbc/syz console output: https://syzkaller.appspot.com/x/log.txt?x=12fb3fc4580000 kernel config: https://syzkaller.appspot.com/x/.config?x=e8d97faf7b870c89 dashboard link: https://syzkaller.appspot.com/bug?extid=1eb177ecc3943b883f0a compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 Note: no patches were applied. Note: testing is done by a robot and is best-effort only.