Paul Meyer
de2ec842d1
verb_attach() falls back to unsigned activation (crypt_activate_by_volume_key) when signed activation fails, but still passed the signature to pcrextend_verity_now(). The signer is parsed out of the (unverified) signature and folded into the dm_verity NvPCR measurement, making an unsigned fallback indistinguishable from a genuinely signed activation to an attester. Only measure the signature when signed activation succeeded. Signed-off-by: Paul Meyer <katexochen0@gmail.com>
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