All of lore.kernel.org
 help / color / mirror / Atom feed
From: Karl Mehltretter <kmehltretter@gmail.com>
To: Lukasz Luba <lukasz.luba@arm.com>,
	 "Rafael J . Wysocki" <rafael@kernel.org>
Cc: Changwoo Min <changwoo@igalia.com>,
	linux-pm@vger.kernel.org,  linux-kernel@vger.kernel.org,
	stable@vger.kernel.org
Subject: Re: [PATCH] PM: EM: allocate the cpumask for every perf domain
Date: Sat, 10 Oct 2026 12:58:47 +0200	[thread overview]
Message-ID: <asoaPjyhSAQ5r-lO@gmail.com> (raw)
In-Reply-To: <20260910205234.5392-1-kmehltretter@gmail.com>

On Thu, Sep 10, 2026 at 10:52:34PM +0100, Karl Mehltretter wrote:
> KASAN reports slab-out-of-bounds reads for both dump and by-ID requests
> against a synthetic non-CPU performance domain.
> 
> GET_PERF_DOMAINS does not require GENL_ADMIN_PERM, so an unprivileged
> request can reach this path when a GPU or another devfreq device has
> registered an energy model.
> 
> Allocate the cpumask for non-CPU domains too.  The zeroed mask remains
> empty, as required for the documented unused field.
> 
> Fixes: d8eef0453132 ("PM: EM: Implement em_nl_get_pds_doit()")
> Cc: stable@vger.kernel.org
> Assisted-by: LLM
> Signed-off-by: Karl Mehltretter <kmehltretter@gmail.com>

Friendly ping on this patch

Thanks,
Karl

  reply	other threads:[~2026-10-10 10:58 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-10 20:52 [PATCH] PM: EM: allocate the cpumask for every perf domain Karl Mehltretter
2026-10-10 10:58 ` Karl Mehltretter [this message]
2026-10-12  7:58 ` Lukasz Luba

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=asoaPjyhSAQ5r-lO@gmail.com \
    --to=kmehltretter@gmail.com \
    --cc=changwoo@igalia.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-pm@vger.kernel.org \
    --cc=lukasz.luba@arm.com \
    --cc=rafael@kernel.org \
    --cc=stable@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.