Fix #8105. Add validation to mmap.mmap so invalid file descriptors
don't cause a crash on Windows.
diff --git a/Misc/NEWS b/Misc/NEWS
index 2affe70..0fa7845 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -21,6 +21,8 @@
 Extensions
 ----------
 
+- Issue #8105: Validate file descriptor passed to mmap.mmap on Windows.
+
 - Issue #8046: Add context manager protocol support and .closed property
   to mmap objects.