Re: tough neverallow

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On Thu, Feb 23, 2023 at 12:38 PM Henry Zhang <henryzhang62@xxxxxxxxx> 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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