Re: [PATCH] net: qrtr: Expand control port access to root

[Jijie Shao]

on 2026/2/5 16:21, Vishnu Santhosh wrote:
> When qrtr is loaded as module, qrtr-ns runs from SELinux kmod_t
> domain. On targets using upstream SELinux policies, this domain
> does not receive CAP_NET_ADMIN, which prevents it from binding
> control port even though qrtr-ns is a trusted system component.
>
> Granting kmod_t the CAP_NET_ADMIN capability in policy is possible,
> but not desirable, as kmod_t is not expected to perform networking
> operations and widening its capability set is discouraged.
>
> To address this in a contained way within qrtr, extend the control
> port permission check to allow binding when either:
>
>    - the process has CAP_NET_ADMIN, or
>    - the process belongs to GLOBAL_ROOT_GID (root-equivalent tasks)
>
> This permits qrtr-ns to successfully bind its control port in
> kmod_t restricted environments without broadening SELinux capability
> assignments.

Hi:

Sorry, I noticed that this patch has several check failures.
You may want to pay attention to this:
https://patchwork.kernel.org/project/netdevbpf/patch/20260205-qrtr-control-port-access-permission-v1-1-e900039e92d5@xxxxxxxxxxxxxxxx/

1.Single patches do not need cover letters; Target tree name not specified in the subject
2.WARNING: line length of 83 exceeds 80 columns
3.AI review found issues

Jijie Shao