Fix allocation

diff --git a/ext/standard/basic_functions.c b/ext/standard/basic_functions.c
index 76d194106c7619b20634c7d1036b26f22c2f6917..5ab301aeb2c41c3696cdf6db3d0d484f4de78846 100644 (file)
--- a/ext/standard/basic_functions.c
+++ b/ext/standard/basic_functions.c
@@ -4098,7 +4098,7 @@ PHP_FUNCTION(getenv)
                                RETURN_EMPTY_STRING();
                }
 
-               valw = emalloc(size);
+               valw = emalloc((size + 1) * sizeof(wchar_t));
                size = GetEnvironmentVariableW(keyw, valw, size);
                if (size == 0) {
                                /* has been removed between the two calls */