Messages in this thread | | | Date | Fri, 3 Feb 2017 12:02:55 +1100 (AEDT) | From | James Morris <> | Subject | Re: [RFC/PATCH 2/3] security: Add the Timgad module |
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On Thu, 2 Feb 2017, Djalal Harouni wrote:
> *) The per-process prctl() settings are: > prctl(PR_TIMGAD_OPTS, PR_TIGMAD_SET_MOD_RESTRICT, value, 0, 0) > > Where value means: > > 0 - Classic module load and unload permissions, nothing changes. > > 1 - The current process must have CAP_SYS_MODULE to be able to load and > unload modules. CAP_NET_ADMIN should allow the current process to > load and unload only netdev aliased modules, not implemented > > 2 - Current process can not loaded nor unloaded modules. > > *) sysctl interface supports the followin values: > > 0 - Classic module load and unload permissions, nothing changes. > > 1 - Only privileged processes with CAP_SYS_MODULE should be able to load and > unload modules. > > To be added: processes with CAP_NET_ADMIN should be able to > load and unload only netdev aliased modules, this is currently not > supported. Other checks for real root without CAP_SYS_MODULE ? ... > > (This should be improved) > > 2 - Modules can not be loaded nor unloaded. Once set, this sysctl value > cannot be changed.
How is this different to just using CAP_SYS_MODULE?
-- James Morris <jmorris@namei.org>
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