Re: tough neverallow

On Thu, Feb 23, 2023 at 12:38 PM Henry Zhang <[email protected]> wrote:

> Hi folks,
>
> I meet a tough neverallow problem:
> (neverallow base_typeattr_8 self (capability (sys_module)))
> |     <root>
> |     allow at
> /mnt/disk2/henryzhang/sec-4715/connectivity-bsp/build-ctx0700-updater/tmp/work/ctx0700-fsl-linux/refpolicy-mcs/2.20190201-r0/image/var/lib/selinux/mcs/tmp/modules/100/ota_client/cil:678
> |       (allow ota_client_t self (capability (net_raw sys_module sys_resource
> mknod)))
>
> The SELinux interface does not contain ota_client_t but file
> usr/share/selinux/devel/include/system/unconfined.if: allow $1
> self:capability ~{ sys_module };
>
> I do not know how to make following worked
> allow ota_client_t self (capability (net_raw sys_module sys_resource
> mknod))
>

Does the ota_client app need these caps? See capabilities(7) or
/usr/include/linux/capability.h
Are you able to manage the app with a confined user like sysadm_u instead?


> Please advise.
>
> Thanks.
>
> ----henry
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-- 

Simon Sekidde

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