1 files changed, 5 insertions, 0 deletions

diff --git a/kernel/power/user.c b/kernel/power/user.c
index 75c959de4b29..abd225550271 100644
--- a/kernel/power/user.c
+++ b/kernel/power/user.c
@@ -186,6 +186,11 @@ static ssize_t snapshot_write(struct file *filp, const char __user *buf,
                 res = PAGE_SIZE - pg_offp;
         }
 
+        if (!data_of(data->handle)) {
+                res = -EINVAL;
+                goto unlock;
+        }
+
         res = simple_write_to_buffer(data_of(data->handle), res, &pg_offp,
                         buf, count);
         if (res > 0)