Messages in this thread | ![/](/images/icornerl.gif) | | From | Amir Goldstein <> | Date | Wed, 31 Jan 2024 15:18:53 +0200 | Subject | Re: [PATCH 0/5] evm: Support signatures on stacked filesystem |
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On Tue, Jan 30, 2024 at 11:46 PM Stefan Berger <stefanb@linux.ibm.com> wrote: > > EVM has recently been completely disabled on unsupported (e.g., > overlayfs). This series now enables copy-up of "portable and immutable" > signatures on those filesystems and enables the enforcement of > "portable and immutable" as well as the "original" signatures on > previously unsupported filesystem when EVM is enabled with EVM_INIT_X509. > HMAC verification and generation remains disabled on those filesystems. >
I am missing a high level description of what is in those "portable and immutable" signatures and how those signatures remain valid across copy up.
Thanks, Amir.
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