1 files changed, 3 insertions, 0 deletions

diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index bddf3b201a48..6e33498d665c 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -2332,6 +2332,7 @@ static ssize_t write_enabled_file_bool(struct file *file,
         if (copy_from_user(buf, user_buf, buf_size))
                 return -EFAULT;
 
+        buf[buf_size] = '\0';
         switch (buf[0]) {
         case 'y':
         case 'Y':
@@ -2343,6 +2344,8 @@ static ssize_t write_enabled_file_bool(struct file *file,
         case '0':
                 disarm_all_kprobes();
                 break;
+        default:
+                return -EINVAL;
         }
 
         return count;