linux-kernel - Re: [PATCH 1/1] x86/boot/compressed: Fix avoiding memmap in physical KASLR

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Message-ID: <CA+CK2bA_HpaZCeRgrBMWE+_1XCnu+Of7OEMg59CDBZHtaNGTsg@mail.gmail.com>
Date: Tue, 10 Jun 2025 18:44:38 -0400
From: Pasha Tatashin <pasha.tatashin@...een.com>
To: Michal Clapinski <mclapinski@...gle.com>
Cc: Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>, 
	Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org, 
	"H. Peter Anvin" <hpa@...or.com>, Ard Biesheuvel <ardb@...nel.org>, Dan Williams <dan.j.williams@...el.com>, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] x86/boot/compressed: Fix avoiding memmap in physical KASLR

On Tue, Jun 10, 2025 at 5:42 PM Michal Clapinski <mclapinski@...gle.com> wrote:
>
> The intent of the code was to cancel KASLR if there are more than 4
> memmap args. Unfortunately, it was only doing that if the memmap args
> were comma delimited, not if they were entirely separate.
> This change fixes it.

Fixes: d52e7d5a952c ("x86/KASLR: Parse all 'memmap=' boot option entries")

> Signed-off-by: Michal Clapinski <mclapinski@...gle.com>

Reviewed-by: Pasha Tatashin <pasha.tatashin@...een.com>