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Commit 9c655be0 authored by Bruno E. O. Meneguele's avatar Bruno E. O. Meneguele Committed by Mimi Zohar
Browse files

ima: log message to module appraisal error 



Simple but useful message log to the user in case of module appraise is
forced and fails due to the lack of file descriptor, that might be
caused by kmod calls to compressed modules.

Signed-off-by: default avatarBruno E. O. Meneguele <brdeoliv@redhat.com>
Signed-off-by: default avatarMimi Zohar <zohar@linux.vnet.ibm.com>
parent 4e8581ee

security/integrity/ima/ima_main.c

+3 −1
Original line number Diff line number Diff line
@@ -404,8 +404,10 @@ int ima_read_file(struct file *file, enum kernel_read_file_id read_id) 


	if (!file && read_id == READING_MODULE) {

		if (!sig_enforce && (ima_appraise & IMA_APPRAISE_MODULES) &&

		    (ima_appraise & IMA_APPRAISE_ENFORCE))

		    (ima_appraise & IMA_APPRAISE_ENFORCE)) {

			pr_err("impossible to appraise a module without a file descriptor. sig_enforce kernel parameter might help\n");

			return -EACCES;	/* INTEGRITY_UNKNOWN */

		}

		return 0;	/* We rely on module signature checking */

	}

	return 0;