Zero memory and set size

Signed-off-by: Daniel Widdis <widdis@gmail.com>
giampaolo · Oct 19, 2022 · 3260d8b · 3260d8b
1 parent b62e4a0
commit 3260d8b
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/psutil/_psutil_windows.c b/psutil/_psutil_windows.c
@@ -611,6 +611,8 @@ psutil_proc_memory_uss(PyObject *self, PyObject *args) {
 static PyObject *
 psutil_virtual_mem(PyObject *self, PyObject *args) {
     PERFORMANCE_INFORMATION perfInfo;
+    ZeroMemory(&perfInfo, sizeof(PERFORMANCE_INFORMATION));
+    perfInfo.cb = sizeof(PERFORMANCE_INFORMATION);
     if (! GetPerformanceInfo(&perfInfo, sizeof(PERFORMANCE_INFORMATION))) {
         PyErr_SetFromWindowsErr(0);
         return NULL;