linux-kernel - Re: [GIT PULL] ACPI fix for v6.16-rc3

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: <CAHk-=wgPwhqr7mwmXDzYkfAcMRu3zyKRxz3hh-wfg-BQxj+UZg@mail.gmail.com>
Date: Sat, 21 Jun 2025 08:35:28 -0700
From: Linus Torvalds <torvalds@...ux-foundation.org>
To: "Rafael J. Wysocki" <rafael@...nel.org>
Cc: ACPI Devel Maling List <linux-acpi@...r.kernel.org>, 
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [GIT PULL] ACPI fix for v6.16-rc3

On Sat, 21 Jun 2025 at 04:31, Rafael J. Wysocki <rafael@...nel.org> wrote:
>
> This fixes a crash in ACPICA while attempting to evaluate a control
> method that expects more arguments than are being passed to it, which
> was exposed by a defective firmware update from a prominent OEM on
> multiple systems.

Christ. Reading the ACPI issues page makes me go "D'oh".

Does anybody know what the heck Windows does in this situation? Does
it just happen to work because it uses random arguments and happily
dereferences bogus things without realizing, or does it do the "zero
out missing arguments" thing?

Because clearly that firmware bug must have passed entirely unnoticed
by people testing that thing on Windows...

              Linus