linux-hardening - Re: [PATCH V2 3/3] efi: pstore: Add module parameter for setting the record size

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Message-ID: <0d037ef8-e301-c0fd-8020-3846a4762ade@igalia.com>
Date:   Fri, 14 Oct 2022 12:19:24 -0300
From:   "Guilherme G. Piccoli" <gpiccoli@...lia.com>
To:     Ard Biesheuvel <ardb@...nel.org>
Cc:     linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, linux-efi@...r.kernel.org,
        kernel-dev@...lia.com, kernel@...ccoli.net, keescook@...omium.org,
        anton@...msg.org, ccross@...roid.com, tony.luck@...el.com
Subject: Re: [PATCH V2 3/3] efi: pstore: Add module parameter for setting the
 record size

On 14/10/2022 12:00, Ard Biesheuvel wrote:
> On Fri, 14 Oct 2022 at 16:58, Guilherme G. Piccoli <gpiccoli@...lia.com> wrote:
>>
>> On 14/10/2022 11:46, Ard Biesheuvel wrote:
>>> [...]
>>>>         for (;;) {
>>>> -               varname_size = EFIVARS_DATA_SIZE_MAX;
>>>> +               varname_size = record_size;
>>>>
>>>
>>> I don't think we need this - this is the size of the variable name not
>>> the variable itself.
>>>
>>
>> Ugh, my bad. Do you want to stick with 1024 then?
> 
> Yes let's keep this at 1024

Perfect, will re-send after we have more feedback on patches 1 and 2.
Thanks again,


Guilherme