Enforce module signatures if the kernel is locked down

If the kernel is locked down, require that all modules have valid
signatures that we can verify.

Signed-off-by: David Howells <dhowells@redhat.com>
Gbp-Pq: Topic features/all/lockdown
Gbp-Pq: Name 0042-Enforce-module-signatures-if-the-kernel-is-locked-do.patch

diff --git a/kernel/module.c b/kernel/module.c
index 7eba6dea4f417dbf363731cf2a3cc374ce1d703b..3331f2eb9b938cf8669cb0bf744fceec0c4a3b5d 100644 (file)
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -2756,7 +2756,7 @@ static int module_sig_check(struct load_info *info, int flags)
        }
 
        /* Not having a signature is only an error if we're strict. */
-       if (err == -ENOKEY && !sig_enforce)
+       if (err == -ENOKEY && !sig_enforce && !kernel_is_locked_down())
                err = 0;
 
        return err;