Re: [PATCH] ovl: filter of trusted xattr results in audit

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On Mon, Oct 07, 2019 at 09:42:08AM -0700, Mark Salyzyn wrote:
> 
> <sigh>
> 
> Now what is the playbook, we have three options in order of preference:
> 
> 1) #ifdef MODULE use capable() to preserve API, add a short comment about
> the side effects if overlayfs is used as a module.
> 
> 2) export has_capability_nodaudit (proc and oom_kill use it, and are both
> built-in only), but affect the 3.18 API at near EOL. AFAIK no one wants
> that?

I'll just do this.  3.18 is EOL, this is only being done for a
distro-specific tree (i.e. AOSP).

> 3) Do nothing more. Make this a distro concern only. Leave this posted as a
> back-port for the record, but never merged, for those that are _interested_
> and declare 3.18 stable as noisy for sepolicy and overlayfs under some usage
> patterns with few user space mitigation unless they explicitly take this
> back-port into their tree (eg: android common kernel) if used built-in. This
> way, in 3.18.y at least the module and built-in version behave the _same_ in
> stable.

I'll just add the export to the patch and check this into AOSP, thanks!

greg k-h



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