diff --git a/Modules/posixmodule.c b/Modules/posixmodule.c
index 8ff487d..dbd534c 100644
--- a/Modules/posixmodule.c
+++ b/Modules/posixmodule.c
@@ -8021,11 +8021,7 @@
         return posix_error();
     }
 
-#ifdef MS_WINDOWS
-    /* On Windows, the count parameter of read() is an int */
-    if (length > INT_MAX)
-        length = INT_MAX;
-#endif
+    length = Py_MIN(length, _PY_READ_MAX);
 
     buffer = PyBytes_FromStringAndSize((char *)NULL, length);
     if (buffer == NULL)