From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 A64D723EAAF; Fri, 9 Jan 2026 07:50:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767945013; cv=none; b=CFKUetu+oyVyfgPNP6KBfb0OY98vUxYtol7y0XAOId7iAJlPCNJYhGETaDpO6Gt3p4KCsxf91fdJ6HDLbL6epuMmLMCP2UchOycs6VkXrVbAtsp3E6LPlBR1xoVn7T5JNLIx9KP/9IcP2DYuHKJ+LvvJithnu7M1rl2vVSCAhKc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767945013; c=relaxed/simple; bh=Rj3x4q25lUQmxFEdT80Amznetj/Vl1GUcn5k3pHOL9k=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=CzMTBIfobYry/9hKDhpWBXrUkIBRmTk9zCQ6sN8hXQ5nFq8aw6DqVxT7s5Zcz2aG9r+3v/rM9Y4QVlE6PP1aeNz50xt6ILSfiQMa1pd0IyzHP5FCJWdz0tQAShjmQ2d2yAfVOyFhlX4jJKlR/R5nf/1AXhVUxwyfKV75/eerkfo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=uGa+e455; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="uGa+e455" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 441F6C4CEF1; Fri, 9 Jan 2026 07:50:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1767945013; bh=Rj3x4q25lUQmxFEdT80Amznetj/Vl1GUcn5k3pHOL9k=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=uGa+e455nMoPgw/5qUmUq//pWQDLJutyOkQq+jBqCQ8NVrx6I5oQpBfb0t/iNMeAr CYsLtTEXfY+VATwVKge+UNoeE6rOY2XdmaG4J5vuHoC6h6Vg1KctFXsimr5XJa3Lpn YR8n41u8UC8PqK/8X6AgRwTRriSWBmi3WbvbBS0HpOawcheI7KyEjHXcvzgPIzVWBG /kemSQjsIUR8/Osok2wEI09nDpQ95bU+ktF1gnX+aApIzrxjtmgR97jOGUnsE3rVhd 7wxQtr5WwEz7tXZAbhUgft7jZbWa8ySVIULTXZvTiso2cvCdQJ1X7qGZObkflGWMH0 kfg56yiHHS1+A== Message-ID: Date: Fri, 9 Jan 2026 08:50:03 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH net] can: kvaser_usb: kvaser_usb_leaf: Fix some info-leaks to USB devices To: Jerry Wu , mkl@pengutronix.de Cc: mailhol@kernel.org, extja@kvaser.com, eeodqql09@gmail.com, linux-can@vger.kernel.org, linux-kernel@vger.kernel.org, Jimmy Assarsson References: From: Vincent Mailhol Content-Language: en-US Autocrypt: addr=mailhol@kernel.org; keydata= xjMEZluomRYJKwYBBAHaRw8BAQdAf+/PnQvy9LCWNSJLbhc+AOUsR2cNVonvxhDk/KcW7FvN JFZpbmNlbnQgTWFpbGhvbCA8bWFpbGhvbEBrZXJuZWwub3JnPsKZBBMWCgBBFiEE7Y9wBXTm fyDldOjiq1/riG27mcIFAmdfB/kCGwMFCQp/CJcFCwkIBwICIgIGFQoJCAsCBBYCAwECHgcC F4AACgkQq1/riG27mcKBHgEAygbvORJOfMHGlq5lQhZkDnaUXbpZhxirxkAHwTypHr4A/joI 2wLjgTCm5I2Z3zB8hqJu+OeFPXZFWGTuk0e2wT4JzjgEZx4y8xIKKwYBBAGXVQEFAQEHQJrb YZzu0JG5w8gxE6EtQe6LmxKMqP6EyR33sA+BR9pLAwEIB8J+BBgWCgAmFiEE7Y9wBXTmfyDl dOjiq1/riG27mcIFAmceMvMCGwwFCQPCZwAACgkQq1/riG27mcJU7QEA+LmpFhfQ1aij/L8V zsZwr/S44HCzcz5+jkxnVVQ5LZ4BANOCpYEY+CYrld5XZvM8h2EntNnzxHHuhjfDOQ3MAkEK In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit +CC: Jimmy On 09/01/2026 at 02:36, Jerry Wu wrote: > Uninitialized Kernel memory can leak to USB devices. Please explain in your description which field(s) is(are) uninitialized in cmd. (or attach a report in which you can witness the information leak). > Fix this by using kzalloc() instead of kmalloc(). > > Fixes: 7259124eac7d ("can: kvaser_usb: Split driver into kvaser_usb_core.c and kvaser_usb_leaf.c") > Signed-off-by: Jerry Wu Yours sincerely, Vincent Mailhol