Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security

Pull security subsystem integrity updates from James Morris:
 "There is a mixture of bug fixes, code cleanup, preparatory code for
  new functionality and new functionality.

  Commit 26ddabfe96bb ("evm: enable EVM when X509 certificate is
  loaded") enabled EVM without loading a symmetric key, but was limited
  to defining the x509 certificate pathname at build. Included in this
  set of patches is the ability of enabling EVM, without loading the EVM
  symmetric key, from userspace. New is the ability to prevent the
  loading of an EVM symmetric key."

* 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
  ima: Remove redundant conditional operator
  ima: Fix bool initialization/comparison
  ima: check signature enforcement against cmdline param instead of CONFIG
  module: export module signature enforcement status
  ima: fix hash algorithm initialization
  EVM: Only complain about a missing HMAC key once
  EVM: Allow userspace to signal an RSA key has been loaded
  EVM: Include security.apparmor in EVM measurements
  ima: call ima_file_free() prior to calling fasync
  integrity: use kernel_read_file_from_path() to read x509 certs
  ima: always measure and audit files in policy
  ima: don't remove the securityfs policy file
  vfs: fix mounting a filesystem with i_version

1 files changed, 10 insertions, 0 deletions

diff --git a/kernel/module.c b/kernel/module.c
index 0122747ba150..32c2cdaccd93 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -278,6 +278,16 @@ static bool sig_enforce = IS_ENABLED(CONFIG_MODULE_SIG_FORCE);
 module_param(sig_enforce, bool_enable_only, 0644);
 #endif /* !CONFIG_MODULE_SIG_FORCE */
 
+/*
+ * Export sig_enforce kernel cmdline parameter to allow other subsystems rely
+ * on that instead of directly to CONFIG_MODULE_SIG_FORCE config.
+ */
+bool is_module_sig_enforced(void)
+{
+	return sig_enforce;
+}
+EXPORT_SYMBOL(is_module_sig_enforced);
+
 /* Block module loading/unloading? */
 int modules_disabled = 0;
 core_param(nomodule, modules_disabled, bint, 0);