bpo-46785: Fix race condition between os.stat() and unlink on Windows (GH-31858)

1 files changed, 11 insertions, 1 deletions

diff --git a/Modules/posixmodule.c b/Modules/posixmodule.c
index a2ea507996..a7f5780468 100644
--- a/Modules/posixmodule.c
+++ b/Modules/posixmodule.c
@@ -1890,7 +1890,17 @@ win32_xstat_impl(const wchar_t *path, struct _Py_stat_struct *result,
             /* Try reading the parent directory. */
             if (!attributes_from_dir(path, &fileInfo, &tagInfo.ReparseTag)) {
                 /* Cannot read the parent directory. */
-                SetLastError(error);
+                switch (GetLastError()) {
+                case ERROR_FILE_NOT_FOUND: /* File cannot be found */
+                case ERROR_PATH_NOT_FOUND: /* File parent directory cannot be found */
+                case ERROR_NOT_READY: /* Drive exists but unavailable */
+                case ERROR_BAD_NET_NAME: /* Remote drive unavailable */
+                    break;
+                /* Restore the error from CreateFileW(). */
+                default:
+                    SetLastError(error);
+                }
+
                 return -1;
             }
             if (fileInfo.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT) {