linux-hardening - Re: [PATCH 1/3] efi: pstore: Request at most 512 bytes for variable names

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Message-ID: <2a500ade-a91d-15f2-e5ae-7f261e6a84b4@igalia.com>
Date: Fri, 15 Mar 2024 16:45:56 -0300
From: "Guilherme G. Piccoli" <gpiccoli@...lia.com>
To: Ard Biesheuvel <ardb@...nel.org>
Cc: linux-efi@...r.kernel.org, Tim Schumacher <timschumi@....de>,
 Kees Cook <keescook@...omium.org>, Tony Luck <tony.luck@...el.com>,
 linux-hardening@...r.kernel.org
Subject: Re: [PATCH 1/3] efi: pstore: Request at most 512 bytes for variable
 names

On 15/03/2024 06:16, Ard Biesheuvel wrote:
> [...]
> As an aside, you really want to avoid EFI pstore in general, and
> specifically on such old systems with quirky UEFI implementations.
>

Hi Ard, this comment made me very curious; apart from old quirky UEFI
implementations, what's the reason you see to avoid using efi-pstore in
general ?

Thanks in advance for your insights!
Cheers,

Guilherme