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 5A02C6FC3 for ; Sun, 19 Jan 2025 01:24:03 +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=1737249844; cv=none; b=MtAQvkjjUn9UJ0YuDy+NwJj7jRT6wURMhccNLFgt4DAoHKLAg9GHFmgWsmTheUA/9AfsNsb6r5nPJ7Sk0FFlrOj1qHMR3YGz3WV8tOeRlBu3o1U0JHkSBwDi82NxuY1OGmP5H/NuGa1oCtntO5ctkqWDlJkMQS8zMsGTC3nqFSw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737249844; c=relaxed/simple; bh=4BpDy2pn1rohaSMi6e5oXpaqnAYCUoF0WREz5AXfPUs=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=J6hUfQI75HH6NfILuPeNAIeWYPYDQnlJbXRjcaNIvZGfl9ceka/afft8mmHWC7y0Fqj0gVYD8bREs1WD2fNAqBky3Kj8SLFThBcWRsblTZcp6cCYAzEQEjzsyfwByFgrZLqZsBX/k9MHxLzENEpbatyDH1tucO7qzJk4mUW3yxA= 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-3ce7880e816so53251705ab.2 for ; Sat, 18 Jan 2025 17:24:02 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1737249842; x=1737854642; 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=AJ8Q4L1tfD/cgDu4GRpd42byML1I9cxg1B9iJ/DWHqI=; b=oPxZY6UiHwfyxAYmIeqPH7x2vKqX3JBy+25jrTQpHi5tkKPvna6StiTzNTBIPyCTHa hReddbv3kOFOdYImTppmOFDL//XhIi2rJUv3uRnlxh3w3G+YViuv4yWRsbHM2yorWVGi q4zIX93fBNtGbsoHtyHMnYe/Fo8lgRPStO5YPek4FUOZi6e2heLYUJZ6mgiO6m9eHZUe NipYTbraCcjdnG4Ck9mtQyEU1bdYmXIAUibuJxGTOfftZtatZkyomifEgsUY6eW/ky0E VgmoTRU6qIa66H8XT1d0tNoe3Ye5tgdLoD44Hkj4z9qRbqnNvbf76UZbgNMHDy7IiQzR Gy5A== X-Forwarded-Encrypted: i=1; AJvYcCUylnKQEmQKjE6qzb520qAlB+L9xThba8hoGAmiKm5kKcILJGQ6rCi9VmKdm+gVjd0qiBVJz9JFCHT8ClI=@vger.kernel.org X-Gm-Message-State: AOJu0Yxrz3VqI0n6bwEJtWZK2rG2HtopG5yamSjwd0VraZGTSltVsyPD rNSk889+Ex8wEWCzbb4Rqscc6t1yhKFwgtF4mkKsZBQB+JjWelhLSrwyVDyxZLosyrNCB4/L8Dr +sGKslmqZqjqodzlHAUKQ0OwtWaWBEGunqbPLkw1npUqoAoEFokN/ChE= X-Google-Smtp-Source: AGHT+IG8BNcJm7uJ8i3LQZeMZhG6wkZtedlQTJJXcSVxWQSNqijYQ/xqL5hKEkrEmqS0lJS1BX2gTcDKPU/4tRZYPaukRELxodT3 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:8e:b0:3ce:7cca:db3e with SMTP id e9e14a558f8ab-3cf744b0115mr77730775ab.19.1737249842473; Sat, 18 Jan 2025 17:24:02 -0800 (PST) Date: Sat, 18 Jan 2025 17:24:02 -0800 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <678c5432.050a0220.303755.003c.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: 20d06ce9 dvb: prevent use of freed dvb device git tree: https://github.com/ea1davis/linux mdbc/syz console output: https://syzkaller.appspot.com/x/log.txt?x=16953fc4580000 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.