Hi, I've started to add integrity interfaces descriptions to syzkaller (https://github.com/google/syzkaller/pull/1970). I've got a question, if you don't mind: If I write 2 to /sys/kernel/security/integrity/evm/evm before loading keys, subsequent fs operations will fail with -ENOKEY. $ echo 2 > /sys/kernel/security/integrity/evm/evm $ touch test.txt [ 526.976855][ T5771] evm: HMAC key is not set [ 526.977892][ T5771] evm: init_desc failed touch: cannot touch 'test.txt': Required key not available Is this a desired behavior? Should there be a check in evm_write_key() for loaded keys (encrypted evm-key, keys in _evm, _ima keyrings) before changing the evm_initialized bit? Is it correct to set second bit without first bit? Thanks, Denis
