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
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