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-rw-r--r--security/integrity/ima/ima_main.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c
index 71fecfef0939..e467664965e7 100644
--- a/security/integrity/ima/ima_main.c
+++ b/security/integrity/ima/ima_main.c
@@ -472,8 +472,10 @@ int ima_post_read_file(struct file *file, void *buf, loff_t size,
if (!file && read_id == READING_FIRMWARE) {
if ((ima_appraise & IMA_APPRAISE_FIRMWARE) &&
- (ima_appraise & IMA_APPRAISE_ENFORCE))
+ (ima_appraise & IMA_APPRAISE_ENFORCE)) {
+ pr_err("Prevent firmware loading_store.\n");
return -EACCES; /* INTEGRITY_UNKNOWN */
+ }
return 0;
}
@@ -517,6 +519,12 @@ int ima_load_data(enum kernel_load_data_id id)
pr_err("impossible to appraise a kernel image without a file descriptor; try using kexec_file_load syscall.\n");
return -EACCES; /* INTEGRITY_UNKNOWN */
}
+ break;
+ case LOADING_FIRMWARE:
+ if (ima_appraise & IMA_APPRAISE_FIRMWARE) {
+ pr_err("Prevent firmware sysfs fallback loading.\n");
+ return -EACCES; /* INTEGRITY_UNKNOWN */
+ }
default:
break;
}