summaryrefslogtreecommitdiffstats
path: root/security/integrity/ima/ima_crypto.c
diff options
context:
space:
mode:
Diffstat (limited to 'security/integrity/ima/ima_crypto.c')
-rw-r--r--security/integrity/ima/ima_crypto.c20
1 files changed, 13 insertions, 7 deletions
diff --git a/security/integrity/ima/ima_crypto.c b/security/integrity/ima/ima_crypto.c
index 0bd732843fe7..d34e7dfc1118 100644
--- a/security/integrity/ima/ima_crypto.c
+++ b/security/integrity/ima/ima_crypto.c
@@ -80,24 +80,24 @@ static int ima_kernel_read(struct file *file, loff_t offset,
{
mm_segment_t old_fs;
char __user *buf = addr;
- ssize_t ret;
+ ssize_t ret = -EINVAL;
if (!(file->f_mode & FMODE_READ))
return -EBADF;
- if (!file->f_op->read && !file->f_op->aio_read)
- return -EINVAL;
old_fs = get_fs();
set_fs(get_ds());
if (file->f_op->read)
ret = file->f_op->read(file, buf, count, &offset);
- else
+ else if (file->f_op->aio_read)
ret = do_sync_read(file, buf, count, &offset);
+ else if (file->f_op->read_iter)
+ ret = new_sync_read(file, buf, count, &offset);
set_fs(old_fs);
return ret;
}
-int ima_init_crypto(void)
+int __init ima_init_crypto(void)
{
long rc;
@@ -116,7 +116,10 @@ static struct crypto_shash *ima_alloc_tfm(enum hash_algo algo)
struct crypto_shash *tfm = ima_shash_tfm;
int rc;
- if (algo != ima_hash_algo && algo < HASH_ALGO__LAST) {
+ if (algo < 0 || algo >= HASH_ALGO__LAST)
+ algo = ima_hash_algo;
+
+ if (algo != ima_hash_algo) {
tfm = crypto_alloc_shash(hash_algo_name[algo], 0, 0);
if (IS_ERR(tfm)) {
rc = PTR_ERR(tfm);
@@ -200,7 +203,10 @@ static struct crypto_ahash *ima_alloc_atfm(enum hash_algo algo)
struct crypto_ahash *tfm = ima_ahash_tfm;
int rc;
- if ((algo != ima_hash_algo && algo < HASH_ALGO__LAST) || !tfm) {
+ if (algo < 0 || algo >= HASH_ALGO__LAST)
+ algo = ima_hash_algo;
+
+ if (algo != ima_hash_algo || !tfm) {
tfm = crypto_alloc_ahash(hash_algo_name[algo], 0, 0);
if (!IS_ERR(tfm)) {
if (algo == ima_hash_algo)