Re: [PATCH v3] security/selinux: fix potential memleak in error branch

From: Paul Moore
Date: Tue Dec 21 2021 - 15:00:35 EST


On Fri, Dec 10, 2021 at 7:04 AM Bernard Zhao <bernard@xxxxxxxx> wrote:
>
> This patch try to fix potential memleak in error branch.
>
> Signed-off-by: Bernard Zhao <bernard@xxxxxxxx>
>
> Changes since V1:
> *make it to be simpler to do the "(!s)" check before the "(!opts)" check.
>
> Changes since v2:
> *add *mnt_opts = NULL after kfree(opt) to avoid double free risk.
> ---
> security/selinux/hooks.c | 12 ++++++++++--
> 1 file changed, 10 insertions(+), 2 deletions(-)

Hi Bernard,

I apologize for the late response, this was lost in my inbox for some
reason. Regardless, this looks fine to me so I'm merging it into
selinux/next; thanks for your help.

However, Ondrej made a few good suggestions about further improvements
that could be made up at the LSM layer, I think it would be nice if
you could look into that too.

Thanks again for your help.

--
paul moore
www.paul-moore.com