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-rw-r--r--security/integrity/ima/ima_fs.c13
1 files changed, 4 insertions, 9 deletions
diff --git a/security/integrity/ima/ima_fs.c b/security/integrity/ima/ima_fs.c
index ca303e5d2b94..ad491c51e833 100644
--- a/security/integrity/ima/ima_fs.c
+++ b/security/integrity/ima/ima_fs.c
@@ -323,16 +323,11 @@ static ssize_t ima_write_policy(struct file *file, const char __user *buf,
if (*ppos != 0)
goto out;
- result = -ENOMEM;
- data = kmalloc(datalen + 1, GFP_KERNEL);
- if (!data)
+ data = memdup_user_nul(buf, datalen);
+ if (IS_ERR(data)) {
+ result = PTR_ERR(data);
goto out;
-
- *(data + datalen) = '\0';
-
- result = -EFAULT;
- if (copy_from_user(data, buf, datalen))
- goto out_free;
+ }
result = mutex_lock_interruptible(&ima_write_mutex);
if (result < 0)