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-rw-r--r--security/integrity/ima/ima_crypto.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/security/integrity/ima/ima_crypto.c b/security/integrity/ima/ima_crypto.c
index fdf60def52e9..d8b55c952005 100644
--- a/security/integrity/ima/ima_crypto.c
+++ b/security/integrity/ima/ima_crypto.c
@@ -161,15 +161,22 @@ static int ima_calc_field_array_hash_tfm(struct ima_field_data *field_data,
return rc;
for (i = 0; i < num_fields; i++) {
+ u8 buffer[IMA_EVENT_NAME_LEN_MAX + 1] = { 0 };
+ u8 *data_to_hash = field_data[i].data;
+ u32 datalen = field_data[i].len;
+
if (strcmp(td->name, IMA_TEMPLATE_IMA_NAME) != 0) {
rc = crypto_shash_update(&desc.shash,
(const u8 *) &field_data[i].len,
sizeof(field_data[i].len));
if (rc)
break;
+ } else if (strcmp(td->fields[i]->field_id, "n") == 0) {
+ memcpy(buffer, data_to_hash, datalen);
+ data_to_hash = buffer;
+ datalen = IMA_EVENT_NAME_LEN_MAX + 1;
}
- rc = crypto_shash_update(&desc.shash, field_data[i].data,
- field_data[i].len);
+ rc = crypto_shash_update(&desc.shash, data_to_hash, datalen);
if (rc)
break;
}