Commit 0485d066 authored Oct 11, 2017 by Matthew Garrett Committed by Mimi Zohar Nov 08, 2017

EVM: Only complain about a missing HMAC key once



A system can validate EVM digital signatures without requiring an HMAC
key, but every EVM validation will generate a kernel error. Change this
so we only generate an error once.

Signed-off-by: Matthew Garrett <mjg59@google.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>

parent f00d7975

security/integrity/evm/evm_crypto.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -80,7 +80,7 @@ static struct shash_desc *init_desc(char type)

		if (type == EVM_XATTR_HMAC) {
		if (!(evm_initialized & EVM_INIT_HMAC)) {
		pr_err("HMAC key is not set\n");
		pr_err_once("HMAC key is not set\n");
		return ERR_PTR(-ENOKEY);
		}
		tfm = &hmac_tfm;