linux-kernel - Re: [PATCH v2] selinux: reject invalid ebitmaps

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Date: Tue, 26 Mar 2024 16:36:12 -0400
From: Paul Moore <paul@...l-moore.com>
To: Christian Göttsche <cgzones@...glemail.com>, selinux@...r.kernel.org
Cc: Stephen Smalley <stephen.smalley.work@...il.com>, Ondrej Mosnacek <omosnace@...hat.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] selinux: reject invalid ebitmaps

On Mar 15, 2024 =?UTF-8?q?Christian=20G=C3=B6ttsche?= <cgzones@...glemail.com> wrote:
> 
> Reject ebitmaps with a node containing an empty map or with an incorrect
> highbit.  Both checks are already performed by userspace, the former
> since 2008 (patch 13cd4c896068 ("initial import from svn trunk revision
> 2950")), the latter since v2.7 in 2017 (patch 75b14a5de10a ("libsepol:
> ebitmap: reject loading bitmaps with incorrect high bit")).
> 
> Signed-off-by: Christian Göttsche <cgzones@...glemail.com>
> ---
> v2:
>   update wording as suggested in [1]
> 
> [1]: https://lore.kernel.org/selinux/d476b21729cafb28c1b881113a563b1f.paul@paul-moore.com/
> ---
>  security/selinux/ss/ebitmap.c | 11 +++++++++++
>  1 file changed, 11 insertions(+)

Merged into selinux/dev, thanks.

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