[LTP] [PATCH] ima: skip verifying TPM 2.0 PCR values

Serge E. Hallyn serge@hallyn.com
Fri Oct 25 14:52:02 CEST 2019


On Fri, Oct 25, 2019 at 10:56:17AM +0200, Petr Vorel wrote:
> Hi,
> 
> > /sys/kernel/security/tpmX/major_version (on fedora and rhel at least, is it elsewhere on other distros?)
> 
> > versus
> 
> > /sys/class/tpm/tpmX/major_version
> 
> Is it more HW related (/sys/class/tpm/tpmX) or LSM related
> (/sys/kernel/security/tpmX)?
> I guess /sys/kernel/security/tpmX might be better.

This is purely about whether the phsyical TPM chip is 1.2 or 2.,
right?  /sys/class/tpm/tpmX is where I would expect to find that.

> Thanks for implementing this, I'll try to test it soon.

Yes, it's been a pain point, and someone (..., I) should have done this years
ago - thanks!


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