From f70b5a22cb2ba5cc15fbcbfb5def169cf5ec33df Mon Sep 17 00:00:00 2001
From: xueshi <qiaoxueshi@gmail.com>
Date: Sun, 18 Feb 2024 04:19:45 -0600
Subject: [PATCH] Check val_string() for Out-of-bounds check

---
 exif.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/exif.cpp b/exif.cpp
index 9b9e05a..51d16e9 100644
--- a/exif.cpp
+++ b/exif.cpp
@@ -347,7 +347,7 @@ IFEntry parseIFEntry_temp(const unsigned char *buf, const unsigned offs,
       }
       // and cut zero byte at the end, since we don't want that in the
       // std::string
-      if (result.val_string()[result.val_string().length() - 1] == '\0') {
+      if (!result.val_string().empty() && result.val_string()[result.val_string().length() - 1] == '\0') {
         result.val_string().resize(result.val_string().length() - 1);
       }
       break;