ima: do not send field length to userspace for digest of ima template

[firefly-linux-kernel-4.4.55.git] / security / integrity / ima / ima_template_lib.c

diff --git a/security/integrity/ima/ima_template_lib.c b/security/integrity/ima/ima_template_lib.c
index 6d66ad6ed265f8f6422c0d9d7f7a64aa732f0779..c38adcc910fbb91f2c6f34255c3940b257bd7f35 100644 (file)
--- a/security/integrity/ima/ima_template_lib.c
+++ b/security/integrity/ima/ima_template_lib.c
@@ -109,9 +109,12 @@ static void ima_show_template_data_binary(struct seq_file *m,
                                          enum data_formats datafmt,
                                          struct ima_field_data *field_data)
 {
-       ima_putc(m, &field_data->len, sizeof(u32));
+       if (show != IMA_SHOW_BINARY_NO_FIELD_LEN)
+               ima_putc(m, &field_data->len, sizeof(u32));
+
        if (!field_data->len)
                return;
+
        ima_putc(m, field_data->data, field_data->len);
 }
 
@@ -125,6 +128,7 @@ static void ima_show_template_field_data(struct seq_file *m,
                ima_show_template_data_ascii(m, show, datafmt, field_data);
                break;
        case IMA_SHOW_BINARY:
+       case IMA_SHOW_BINARY_NO_FIELD_LEN:
                ima_show_template_data_binary(m, show, datafmt, field_data);
                break;
        default: