linux-kernel - Re: [PATCH] pstore: ramoops: support pmsg size larger than kmalloc limitation

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Message-ID: <202308171639.B97420B5@keescook>
Date:   Thu, 17 Aug 2023 16:40:24 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Yuxiao Zhang <yuxiaozhang@...gle.com>
Cc:     Tony Luck <tony.luck@...el.com>,
        "'Guilherme G . Piccoli'" <gpiccoli@...lia.com>,
        Greg KH <gregkh@...uxfoundation.org>,
        linux-hardening@...r.kernel.org, linux-kernel@...r.kernel.org,
        wak@...gle.com
Subject: Re: [PATCH] pstore: ramoops: support pmsg size larger than kmalloc
 limitation

On Tue, Jul 18, 2023 at 01:23:47PM -0700, Yuxiao Zhang wrote:
> Friendly ping, any update on this?

Hi! I finally got a chance to look this over. I added a few more
kvzalloc() uses to generalize this for all records (not just pmsg), and
it's testing well. Here's the resulting commit:

https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git/commit/?h=for-next/pstore&id=104fd0b5e948157f8e8ac88a20b46ba8641d4e95

-- 
Kees Cook