Commit 155bdd30 authored by Jiri Bohac's avatar Jiri Bohac Committed by James Morris

kexec_file: Restrict at runtime if the kernel is locked down

When KEXEC_SIG is not enabled, kernel should not load images through
kexec_file systemcall if the kernel is locked down.

[Modified by David Howells to fit with modifications to the previous patch
 and to return -EPERM if the kernel is locked down for consistency with
 other lockdowns. Modified by Matthew Garrett to remove the IMA
 integration, which will be replaced by integrating with the IMA
 architecture policy patches.]
Signed-off-by: default avatarJiri Bohac <jbohac@suse.cz>
Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
Signed-off-by: default avatarMatthew Garrett <mjg59@google.com>
cc: kexec@lists.infradead.org
Signed-off-by: default avatarJames Morris <jmorris@namei.org>
parent 99d5cadf
......@@ -208,7 +208,7 @@ kimage_validate_signature(struct kimage *image)
return ret;
}
return 0;
return security_locked_down(LOCKDOWN_KEXEC);
/* All other errors are fatal, including nomem, unparseable
* signatures and signature check failures - even if signatures
......
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