Merge branch 'PHP-7.3' into PHP-7.4

* PHP-7.3:
  Fix #80258: Windows Deduplication Enabled, randon permission errors

Author: cmb69

NEWS

@@ -5,6 +5,8 @@ PHP                                                                        NEWS
 - Core:
   . Fixed bug #80280 (ADD_EXTENSION_DEP() fails for ext/standard and ext/date).
     (cmb)
+  . Fixed bug #80258 (Windows Deduplication Enabled, randon permission errors).
+    (cmb)
 
 - IMAP:
   . Fixed bug #64076 (imap_sort() does not return FALSE on failure). (cmb)

Zend/zend_virtual_cwd.c

@@ -492,7 +492,7 @@ CWD_API realpath_cache_bucket** realpath_cache_get_buckets(void)
 static size_t tsrm_realpath_r(char *path, size_t start, size_t len, int *ll, time_t *t, int use_realpath, int is_dir, int *link_is_dir) /* {{{ */
 {
 	size_t i, j;
-	int directory = 0, save;
+	int directory = 0, save, may_retry_reparse_point;
 #ifdef ZEND_WIN32
 	WIN32_FIND_DATAW dataw;
 	HANDLE hFind = INVALID_HANDLE_VALUE;
@@ -597,6 +597,7 @@ static size_t tsrm_realpath_r(char *path, size_t start, size_t len, int *ll, tim
 
 #ifdef ZEND_WIN32
 retry_reparse_point:
+		may_retry_reparse_point = 0;
 		if (save) {
 			pathw = php_win32_ioutil_any_to_w(path);
 			if (!pathw) {
@@ -691,6 +692,7 @@ static size_t tsrm_realpath_r(char *path, size_t start, size_t len, int *ll, tim
 			CloseHandle(hLink);
 
 			if(pbuffer->ReparseTag == IO_REPARSE_TAG_SYMLINK) {
+				may_retry_reparse_point = 1;
 				reparsetarget = pbuffer->SymbolicLinkReparseBuffer.ReparseTarget;
 				isabsolute = pbuffer->SymbolicLinkReparseBuffer.Flags == 0;
 #if VIRTUAL_CWD_DEBUG
@@ -827,7 +829,7 @@ static size_t tsrm_realpath_r(char *path, size_t start, size_t len, int *ll, tim
 			free_alloca(pbuffer, use_heap_large);
 			free(substitutename);
 
-			{
+			if (may_retry_reparse_point) {
 				DWORD attrs;
 
 				FREE_PATHW()