From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: Dennis Zhou <dennis@kernel.org>
Cc: Tejun Heo <tj@kernel.org>, Christoph Lameter <cl@linux.com>,
Andrew Morton <akpm@linux-foundation.org>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] percpu: add basic double free check
Date: Mon, 12 Jan 2026 17:03:21 +0100 [thread overview]
Message-ID: <20260112160321.kCh3NHWV@linutronix.de> (raw)
In-Reply-To: <20251220002737.84100-1-dennis@kernel.org>
On 2025-12-19 16:27:37 [-0800], Dennis Zhou wrote:
> This adds a basic double free check by validating the first bit of the
> allocation in alloc_map and bound_map are set. If the alloc_map bit is
> not set, then this means the area is currently unallocated. If the
> bound_map bit is not set, then we are not freeing from the beginning of
> the allocation.
>
> This is a respin of [1] adding the requested changes from me and
> Christoph.
Thank you.
> [1] https://lore.kernel.org/linux-mm/20250904143514.Yk6Ap-jy@linutronix.de/
>
Sebastian
prev parent reply other threads:[~2026-01-12 16:03 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-20 0:27 Dennis Zhou
2026-01-12 16:03 ` Sebastian Andrzej Siewior [this message]
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=20260112160321.kCh3NHWV@linutronix.de \
--to=bigeasy@linutronix.de \
--cc=akpm@linux-foundation.org \
--cc=cl@linux.com \
--cc=dennis@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=tj@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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox