From: Kees Cook <kees@kernel.org>
To: Jann Horn <jannh@google.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>,
Christian Brauner <brauner@kernel.org>, Jan Kara <jack@suse.cz>,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-hardening@vger.kernel.org
Subject: Re: [PATCH] fs: Keep long filenames in isolated slab buckets
Date: Wed, 11 Feb 2026 06:13:55 -0800 [thread overview]
Message-ID: <202602110613.7FEC92C@keescook> (raw)
In-Reply-To: <CAG48ez1wxj5uxuMXQLV+yxfT4gumNSoK8UX2+K=5aCLAKg+VPg@mail.gmail.com>
On Wed, Feb 11, 2026 at 03:06:47AM +0100, Jann Horn wrote:
> Actually, looking around a bit, there really aren't that many
> allocations with __GFP_RECLAIMABLE, so this probably isn't all that
> useful for same-cache attacks. (To be clear: Anything with
> __GFP_RECLAIMABLE goes in the special kmalloc-rcl-* slabs.) Looking
Ah! Yeah, I looked right past __GFP_RECLAIMABLE. As you say, this will
keep it isolated already.
--
Kees Cook
next prev parent reply other threads:[~2026-02-11 14:13 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-11 0:48 [PATCH] fs: Keep long filenames in isolated slab buckets Kees Cook
2026-02-11 1:28 ` Jann Horn
2026-02-11 1:41 ` Kees Cook
2026-02-11 2:06 ` Jann Horn
2026-02-11 2:23 ` Al Viro
2026-02-11 14:13 ` Kees Cook [this message]
2026-02-11 2:15 ` Al Viro
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=202602110613.7FEC92C@keescook \
--to=kees@kernel.org \
--cc=brauner@kernel.org \
--cc=jack@suse.cz \
--cc=jannh@google.com \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-hardening@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=viro@zeniv.linux.org.uk \
/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.