linux-kernel - Re: [PATCH v3] x86/efi: Free EFI memory map only when installing a new one.

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]

Message-ID: <20240613085505.GDZmqz6UWxZ1QxKeHu@fat_crate.local>
Date: Thu, 13 Jun 2024 10:55:05 +0200
From: Borislav Petkov <bp@...en8.de>
To: Ard Biesheuvel <ardb@...nel.org>
Cc: Ard Biesheuvel <ardb+git@...gle.com>, linux-efi@...r.kernel.org,
	linux-kernel@...r.kernel.org, x86@...nel.org,
	Ashish Kalra <Ashish.Kalra@....com>, Dave Young <dyoung@...hat.com>,
	Mike Rapoport <rppt@...nel.org>,
	Dan Williams <dan.j.williams@...el.com>
Subject: Re: [PATCH v3] x86/efi: Free EFI memory map only when installing a
 new one.

On Thu, Jun 13, 2024 at 10:28:05AM +0200, Ard Biesheuvel wrote:
> Given that this fixes an actual use-after-free bug that is not
> specific to TDX/SEV or kexec, I'm inclined to queue this up as a fix.
> 
> @Boris: Mind if I take this as an EFI fix? Otherwise, can you queue
> this up? Thanks.

Sure, go ahead:

$ git log master..tip/master arch/x86/platform/efi/memmap.c
$ 

Should be fine, conflict-wise.

:-)

Thx.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette