From: Jiri Bohac <jbohac@xxxxxxx> 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: Jiri Bohac <jbohac@xxxxxxx> Signed-off-by: David Howells <dhowells@xxxxxxxxxx> Signed-off-by: Matthew Garrett <mjg59@xxxxxxxxxx> cc: kexec@xxxxxxxxxxxxxxxxxxx --- kernel/kexec_file.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/kexec_file.c b/kernel/kexec_file.c index 972931201995..43109ef4d6bf 100644 --- a/kernel/kexec_file.c +++ b/kernel/kexec_file.c @@ -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 -- 2.23.0.rc1.153.gdeed80330f-goog _______________________________________________ kexec mailing list kexec@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/kexec
