[corlib] Add range checks to CharUnicodeInfo. Fixes #25895

diff --git a/mcs/class/corlib/System.Globalization/CharUnicodeInfo.cs b/mcs/class/corlib/System.Globalization/CharUnicodeInfo.cs
index 5da049089aa1c11cee177793d31ed7f584d9b92f..fd6820d1d4561e70628cd9eb8e6c70544531dce0 100644 (file)
--- a/mcs/class/corlib/System.Globalization/CharUnicodeInfo.cs
+++ b/mcs/class/corlib/System.Globalization/CharUnicodeInfo.cs
@@ -290,6 +290,8 @@ namespace System.Globalization
                {
                        if (s == null)
                                throw new ArgumentNullException ("s");
+                       if (((uint)index)>=((uint)s.Length))
+                               throw new ArgumentOutOfRangeException("index");
                        return GetNumericValue (s [index]);
                }
 
@@ -302,6 +304,8 @@ namespace System.Globalization
                {
                        if (s == null)
                                throw new ArgumentNullException ("s");
+                       if (((uint)index)>=((uint)s.Length))
+                               throw new ArgumentOutOfRangeException("index");
                        return Char.GetUnicodeCategory (s, index);
                }
        }