diff --git a/Zend/zend_virtual_cwd.c b/Zend/zend_virtual_cwd.c
index 404a5cfea4c..14e55fab447 100644
--- a/Zend/zend_virtual_cwd.c
+++ b/Zend/zend_virtual_cwd.c
@@ -120,7 +120,7 @@ static cwd_state main_cwd_state; /* True global */
 
 static int php_is_dir_ok(const cwd_state *state)  /* {{{ */
 {
-	zend_stat_t buf;
+	zend_stat_t buf = {0};
 
 	if (php_sys_stat(state->cwd, &buf) == 0 && S_ISDIR(buf.st_mode))
 		return (0);
@@ -131,7 +131,7 @@ static int php_is_dir_ok(const cwd_state *state)  /* {{{ */
 
 static int php_is_file_ok(const cwd_state *state)  /* {{{ */
 {
-	zend_stat_t buf;
+	zend_stat_t buf = {0};
 
 	if (php_sys_stat(state->cwd, &buf) == 0 && S_ISREG(buf.st_mode))
 		return (0);
diff --git a/ext/exif/exif.c b/ext/exif/exif.c
index 74dba4bf698..0da72209b09 100644
--- a/ext/exif/exif.c
+++ b/ext/exif/exif.c
@@ -4376,7 +4376,7 @@ static bool exif_discard_imageinfo(image_info_type *ImageInfo)
 static bool exif_read_from_impl(image_info_type *ImageInfo, php_stream *stream, int read_thumbnail, int read_all)
 {
 	bool ret;
-	zend_stat_t st;
+	zend_stat_t st = {0};
 
 	/* Start with an empty image information structure. */
 	memset(ImageInfo, 0, sizeof(*ImageInfo));
diff --git a/ext/fileinfo/libmagic/apprentice.c b/ext/fileinfo/libmagic/apprentice.c
index 8cfdb5e19d9..e1ba0685326 100644
--- a/ext/fileinfo/libmagic/apprentice.c
+++ b/ext/fileinfo/libmagic/apprentice.c
@@ -1187,7 +1187,7 @@ load_1(struct magic_set *ms, int action, const char *fn, int *errs,
 					continue;
 				}
 				if ((*bang[i].fun)(ms, &me,
-				    line + bang[i].len + 2, 
+				    line + bang[i].len + 2,
 				    len - bang[i].len - 2) != 0) {
 					(*errs)++;
 					continue;
@@ -1324,7 +1324,7 @@ apprentice_load(struct magic_set *ms, const char *fn, int action)
 	uint32_t i, j;
 	size_t files = 0, maxfiles = 0;
 	char **filearr = NULL;
-	zend_stat_t st;
+	zend_stat_t st = {0};
 	struct magic_map *map;
 	struct magic_entry_set mset[MAGIC_SETS];
 	php_stream *dir;
@@ -1419,7 +1419,7 @@ apprentice_load(struct magic_set *ms, const char *fn, int action)
 		/* coalesce per file arrays into a single one, if needed */
 		if (mset[j].count == 0)
 			continue;
-		      
+
 		if (coalesce_entries(ms, mset[j].me, mset[j].count,
 		    &map->magic[j], &map->nmagic[j]) == -1) {
 			errs++;
diff --git a/ext/fileinfo/libmagic/magic.c b/ext/fileinfo/libmagic/magic.c
index 9b80dab1c72..4ed986b17ce 100644
--- a/ext/fileinfo/libmagic/magic.c
+++ b/ext/fileinfo/libmagic/magic.c
@@ -188,7 +188,7 @@ file_or_stream(struct magic_set *ms, const char *inname, php_stream *stream)
 {
 	int	rv = -1;
 	unsigned char *buf;
-	zend_stat_t   sb;
+	zend_stat_t   sb = {0};
 	ssize_t nbytes = 0;	/* number of bytes read from a datafile */
 	int no_in_stream = 0;
 
diff --git a/ext/openssl/openssl.c b/ext/openssl/openssl.c
index 506074172a3..7e36486b07e 100644
--- a/ext/openssl/openssl.c
+++ b/ext/openssl/openssl.c
@@ -2364,7 +2364,7 @@ static X509_STORE *php_openssl_setup_verify(zval *calist)
 	X509_LOOKUP * dir_lookup, * file_lookup;
 	int ndirs = 0, nfiles = 0;
 	zval * item;
-	zend_stat_t sb;
+	zend_stat_t sb = {0};
 
 	store = X509_STORE_new();
 
diff --git a/ext/session/mod_files.c b/ext/session/mod_files.c
index 1da25ba583e..09721715553 100644
--- a/ext/session/mod_files.c
+++ b/ext/session/mod_files.c
@@ -283,7 +283,7 @@ static int ps_files_cleanup_dir(const char *dirname, zend_long maxlifetime)
 {
 	DIR *dir;
 	struct dirent *entry;
-	zend_stat_t sbuf;
+	zend_stat_t sbuf = {0};
 	char buf[MAXPATHLEN];
 	time_t now;
 	int nrdels = 0;
@@ -340,7 +340,7 @@ static int ps_files_cleanup_dir(const char *dirname, zend_long maxlifetime)
 static int ps_files_key_exists(ps_files *data, const char *key)
 {
 	char buf[MAXPATHLEN];
-	zend_stat_t sbuf;
+	zend_stat_t sbuf = {0};
 
 	if (!key || !ps_files_path_create(buf, sizeof(buf), data, key)) {
 		return FAILURE;
@@ -473,7 +473,7 @@ PS_CLOSE_FUNC(files)
 PS_READ_FUNC(files)
 {
 	zend_long n = 0;
-	zend_stat_t sbuf;
+	zend_stat_t sbuf = {0};
 	PS_FILES_DATA;
 
 	ps_files_open(data, ZSTR_VAL(key));
diff --git a/ext/session/session.c b/ext/session/session.c
index 8212ad23cd7..5f3d3384d21 100644
--- a/ext/session/session.c
+++ b/ext/session/session.c
@@ -1153,7 +1153,7 @@ static inline void strcpy_gmt(char *ubuf, time_t *when) /* {{{ */
 static inline void last_modified(void) /* {{{ */
 {
 	const char *path;
-	zend_stat_t sb;
+	zend_stat_t sb = {0};
 	char buf[MAX_STR + 1];
 
 	path = SG(request_info).path_translated;
diff --git a/ext/standard/pageinfo.c b/ext/standard/pageinfo.c
index 8e15d2b06c3..5406662141d 100644
--- a/ext/standard/pageinfo.c
+++ b/ext/standard/pageinfo.c
@@ -50,7 +50,7 @@
 /* {{{ php_statpage */
 PHPAPI void php_statpage(void)
 {
-	zend_stat_t *pstat;
+	zend_stat_t *pstat = {0};
 
 	pstat = sapi_get_stat();
 
diff --git a/ext/standard/php_fopen_wrapper.c b/ext/standard/php_fopen_wrapper.c
index 0353c8efae6..8926485025a 100644
--- a/ext/standard/php_fopen_wrapper.c
+++ b/ext/standard/php_fopen_wrapper.c
@@ -392,7 +392,7 @@ php_stream * php_stream_url_wrap_php(php_stream_wrapper *wrapper, const char *pa
 
 #if defined(S_IFSOCK) && !defined(PHP_WIN32)
 	do {
-		zend_stat_t st;
+		zend_stat_t st = {0};
 		memset(&st, 0, sizeof(st));
 		if (zend_fstat(fd, &st) == 0 && (st.st_mode & S_IFMT) == S_IFSOCK) {
 			stream = php_stream_sock_open_from_socket(fd, NULL);
diff --git a/ext/xmlwriter/php_xmlwriter.c b/ext/xmlwriter/php_xmlwriter.c
index e9a3dff2781..8d4abb3d26b 100644
--- a/ext/xmlwriter/php_xmlwriter.c
+++ b/ext/xmlwriter/php_xmlwriter.c
@@ -155,7 +155,7 @@ static char *_xmlwriter_get_valid_file_path(char *source, char *resolved_path, i
 		dir_len = php_dirname(file_dirname, strlen(source));
 
 		if (dir_len > 0) {
-			zend_stat_t buf;
+			zend_stat_t buf = {0};
 			if (php_sys_stat(file_dirname, &buf) != 0) {
 				xmlFreeURI(uri);
 				return NULL;
diff --git a/ext/zip/php_zip.c b/ext/zip/php_zip.c
index e54c4976247..ab0ecda212f 100644
--- a/ext/zip/php_zip.c
+++ b/ext/zip/php_zip.c
@@ -685,7 +685,7 @@ int php_zip_glob(char *pattern, int pattern_len, zend_long flags, zval *return_v
 		 * able to filter directories out.
 		 */
 		if (flags & GLOB_ONLYDIR) {
-			zend_stat_t s;
+			zend_stat_t s = {0};
 
 			if (0 != VCWD_STAT(globbuf.gl_pathv[n], &s)) {
 				continue;
@@ -757,7 +757,7 @@ int php_zip_pcre(zend_string *regexp, char *path, int path_len, zval *return_val
 
 		/* only the files, directories are ignored */
 		for (i = 0; i < files_cnt; i++) {
-			zend_stat_t s;
+			zend_stat_t s = {0};
 			char   fullpath[MAXPATHLEN];
 			size_t    namelist_len = ZSTR_LEN(namelist[i]);
 
@@ -1482,7 +1482,7 @@ PHP_METHOD(ZipArchive, open)
 #else
 	if ((flags & ZIP_TRUNCATE) == 0) {
 #endif
-		zend_stat_t st;
+		zend_stat_t st = {0};
 
 		/* exists and is empty */
 		if (VCWD_STAT(resolved_path, &st) == 0 && st.st_size == 0) {
diff --git a/main/main.c b/main/main.c
index 3bdd01169ee..1ed43efb8a2 100644
--- a/main/main.c
+++ b/main/main.c
@@ -363,7 +363,7 @@ static void php_binary_init(void)
 			if ((envpath = getenv("PATH")) != NULL) {
 				char *search_dir, search_path[MAXPATHLEN];
 				char *last = NULL;
-				zend_stat_t s;
+				zend_stat_t s = {0};
 
 				path = estrdup(envpath);
 				search_dir = php_strtok_r(path, ":", &last);
@@ -1397,7 +1397,7 @@ static ZEND_COLD void php_error_cb(int orig_type, zend_string *error_filename, c
 /* {{{ php_get_current_user */
 PHPAPI char *php_get_current_user(void)
 {
-	zend_stat_t *pstat;
+	zend_stat_t *pstat = {0};
 
 	if (SG(request_info).current_user) {
 		return SG(request_info).current_user;
diff --git a/main/php_ini.c b/main/php_ini.c
index 0f3fdcd502f..2ff259f6e11 100644
--- a/main/php_ini.c
+++ b/main/php_ini.c
@@ -768,7 +768,7 @@ void php_ini_register_extensions(void)
 /* {{{ php_parse_user_ini_file */
 PHPAPI int php_parse_user_ini_file(const char *dirname, const char *ini_filename, HashTable *target_hash)
 {
-	zend_stat_t sb;
+	zend_stat_t sb = {0};
 	char ini_file[MAXPATHLEN];
 
 	snprintf(ini_file, MAXPATHLEN, "%s%c%s", dirname, DEFAULT_SLASH, ini_filename);
diff --git a/sapi/cgi/cgi_main.c b/sapi/cgi/cgi_main.c
index 4f9a71bfac6..eb7ece3f1cd 100644
--- a/sapi/cgi/cgi_main.c
+++ b/sapi/cgi/cgi_main.c
@@ -1210,7 +1210,7 @@ static void init_request_info(fcgi_request *request)
 #endif
 
 		if (CGIG(fix_pathinfo)) {
-			zend_stat_t st;
+			zend_stat_t st = {0};
 			char *real_path = NULL;
 			char *env_redirect_url = CGI_GETENV("REDIRECT_URL");
 			char *env_document_root = CGI_GETENV("DOCUMENT_ROOT");
diff --git a/sapi/phpdbg/phpdbg.c b/sapi/phpdbg/phpdbg.c
index e39a5c7fb4e..440f526f2be 100644
--- a/sapi/phpdbg/phpdbg.c
+++ b/sapi/phpdbg/phpdbg.c
@@ -268,7 +268,7 @@ PHP_FUNCTION(phpdbg_exec)
 	}
 
 	{
-		zend_stat_t sb;
+		zend_stat_t sb = {0};
 		bool result = 1;
 
 		if (VCWD_STAT(ZSTR_VAL(exec), &sb) != FAILURE) {
diff --git a/sapi/phpdbg/phpdbg_prompt.c b/sapi/phpdbg/phpdbg_prompt.c
index dfdac95cae5..0aa13475eab 100644
--- a/sapi/phpdbg/phpdbg_prompt.c
+++ b/sapi/phpdbg/phpdbg_prompt.c
@@ -306,7 +306,7 @@ void phpdbg_string_init(char *buffer) {
 
 void phpdbg_try_file_init(char *init_file, size_t init_file_len, bool free_init) /* {{{ */
 {
-	zend_stat_t sb;
+	zend_stat_t sb = {0};
 
 	if (init_file && VCWD_STAT(init_file, &sb) != -1) {
 		FILE *fp = fopen(init_file, "r");
@@ -398,7 +398,7 @@ void phpdbg_clean(bool full, bool resubmit) /* {{{ */
 
 PHPDBG_COMMAND(exec) /* {{{ */
 {
-	zend_stat_t sb;
+	zend_stat_t sb = {0};
 
 	if (VCWD_STAT(param->str, &sb) != FAILURE) {
 		if (sb.st_mode & (S_IFREG|S_IFLNK)) {
@@ -1390,7 +1390,7 @@ PHPDBG_COMMAND(dl) /* {{{ */
 
 PHPDBG_COMMAND(source) /* {{{ */
 {
-	zend_stat_t sb;
+	zend_stat_t sb = {0};
 
 	if (VCWD_STAT(param->str, &sb) != -1) {
 		phpdbg_try_file_init(param->str, param->len, 0);
diff --git a/win32/glob.c b/win32/glob.c
index 578284cb3de..357809e3369 100644
--- a/win32/glob.c
+++ b/win32/glob.c
@@ -553,7 +553,7 @@ glob2(pathbuf, pathbuf_last, pathend, pathend_last, pattern,
 	glob_t *pglob;
 	size_t *limitp;
 {
-	zend_stat_t sb;
+	zend_stat_t sb = {0};
 	Char *p, *q;
 	int anymeta;
 
@@ -850,7 +850,7 @@ g_opendir(str, pglob)
 static int
 g_lstat(fn, sb, pglob)
 	register Char *fn;
-	zend_stat_t *sb;
+	zend_stat_t *sb = {0};
 	glob_t *pglob;
 {
 	char buf[MAXPATHLEN];
@@ -865,7 +865,7 @@ g_lstat(fn, sb, pglob)
 static int
 g_stat(fn, sb, pglob)
 	register Char *fn;
-	zend_stat_t *sb;
+	zend_stat_t *sb = {0};
 	glob_t *pglob;
 {
 	char buf[MAXPATHLEN];