Messages in this thread | | | Date | Thu, 7 May 2020 14:53:15 -0400 | From | Rafael Aquini <> | Subject | Re: [PATCH v2] kernel: add panic_on_taint |
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On Thu, May 07, 2020 at 06:50:46PM +0000, Luis Chamberlain wrote: > 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. >
To accomplish that, the punk would need to be root, though, in which case everything else is doomed, already. > Forunately proc_taint() only allows to *increment* the taint, not > reduce. > > Luis >
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