linux-kernel - Re: [PATCH v2 0/2] efi: Fixes for EFI_MEMORY

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date: Fri, 2 Feb 2024 19:28:54 +0100
From: Ard Biesheuvel <ardb@...nel.org>
To: Andrew Bresticker <abrestic@...osinc.com>
Cc: Paul Walmsley <paul.walmsley@...ive.com>, Palmer Dabbelt <palmer@...belt.com>, 
	Albert Ou <aou@...s.berkeley.edu>, linux-efi@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org
Subject: Re: [PATCH v2 0/2] efi: Fixes for EFI_MEMORY_SP memory on RISC-V and ARM64

On Fri, 2 Feb 2024 at 19:07, Andrew Bresticker <abrestic@...osinc.com> wrote:
>
> Two small fixes to enable the use soft-reserved/special-purpose memory
> (EFI_MEMORY_SP) with dax_kmem on RISC-V (and ARM64, I think, though I
> don't have a platform to test it on).
>
> Patch 1 fixes a trivial integer narrowing bug. Patch 2 prevents adding
> memblocks for soft-reserved memory so that it can later be hotplugged by
> dax_kmem.
>
> Tested on a RISC-V platform that presents a range of EFI_MEMORY_SP with
> Bjorn's MEMORY_HOTPLUG series[0] applied.
>
> [0]: https://lore.kernel.org/lkml/20230512145737.985671-1-bjorn@kernel.org/
>
> v1->v2: address comments from Ard
>
> Andrew Bresticker (2):
>   efi: runtime: Fix potential overflow of soft-reserved region size
>   efi: Don't add memblocks for soft-reserved memory
>

Thanks, I'll take these both as fixes.