From 8c1828e136b7c64c26042ff7641b9505a0677356 Mon Sep 17 00:00:00 2001
From: Marcus Holland-Moritz <github@mhxnet.de>
Date: Tue, 4 Jul 2023 12:36:36 +0200
Subject: [PATCH] Additional safety check when stat()-ing files

---
 src/dwarfs/file_stat.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/dwarfs/file_stat.cpp b/src/dwarfs/file_stat.cpp
index 46a3363c..d9d35f26 100644
--- a/src/dwarfs/file_stat.cpp
+++ b/src/dwarfs/file_stat.cpp
@@ -41,6 +41,7 @@
 #include "dwarfs/error.h"
 #include "dwarfs/mmap.h"
 #include "dwarfs/os_access_generic.h"
+#include "dwarfs/util.h"
 
 namespace dwarfs {
 
@@ -67,6 +68,9 @@ uint64_t time_from_filetime(FILETIME const& ft) {
 file_stat make_file_stat(fs::path const& path) {
   auto status = fs::symlink_status(path);
 
+  DWARFS_CHECK(status.type() != fs::file_type::not_found,
+               u8string_to_string(path.u8string()));
+
   file_stat rv;
   rv.mode = file_status_to_mode(status);
   rv.blksize = 0;