Re: [PATCH v2] kernel: add panic_on_taint

[Luis Chamberlain]

On Thu, May 07, 2020 at 02:06:31PM -0400, Rafael Aquini wrote:
> Another, perhaps less frequent, use for this option would be
> as a mean for assuring a security policy (in paranoid mode)
> case where no single taint is allowed for the running system.

If used for this purpose then we must add a new TAINT flag for
proc_taint() was used, otherwise we can cheat to show a taint
*did* happen, where in fact it never happened, some punk just
echo'd a value into the kernel's /proc/sys/kernel/tainted.

Forunately proc_taint() only allows to *increment* the taint, not
reduce.

  Luis