linux-kernel - Re: [PATCH v5] selinux: fix a missing-check bug in selinux_sb_eat_lsm

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Message-ID: <CAHC9VhR2Hyr+SXnO2ss4L-jcOJUVmYPPQ20N8-CQFPbsK5T6eQ@mail.gmail.com>
Date:   Wed, 12 Jun 2019 12:32:27 -0400
From:   Paul Moore <paul@...l-moore.com>
To:     Gen Zhang <blackgod016574@...il.com>
Cc:     Stephen Smalley <sds@...ho.nsa.gov>,
        Eric Paris <eparis@...isplace.org>, selinux@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5] selinux: fix a missing-check bug in selinux_sb_eat_lsm_opts()

On Wed, Jun 12, 2019 at 9:55 AM Gen Zhang <blackgod016574@...il.com> wrote:
>
> In selinux_sb_eat_lsm_opts(), 'arg' is allocated by kmemdup_nul(). It
> returns NULL when fails. So 'arg' should be checked. And 'mnt_opts'
> should be freed when error.
>
> Signed-off-by: Gen Zhang <blackgod016574@...il.com>
> Fixes: 99dbbb593fe6 ("selinux: rewrite selinux_sb_eat_lsm_opts()")

Merged into selinux/stable-5.2, thanks.

-- 
paul moore
www.paul-moore.com