From d881a7bbb1562af383bbb6ca20340ad739fb0d13 Mon Sep 17 00:00:00 2001
From: Mirco Miranda <mircomir@gmail.com>
Date: Tue, 20 Sep 2022 19:44:08 +0200
Subject: [PATCH] LibRaw_QIODevice::seek() bounding checks

---
 src/imageformats/raw.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/imageformats/raw.cpp b/src/imageformats/raw.cpp
index 276d004..5e92fad 100644
--- a/src/imageformats/raw.cpp
+++ b/src/imageformats/raw.cpp
@@ -131,11 +131,15 @@ public:
     virtual int seek(INT64 o, int whence) override
     {
         auto pos = o;
+        auto size = m_device->size();
         if (whence == SEEK_CUR) {
             pos = m_device->pos() + o;
         }
         if (whence == SEEK_END) {
-            pos = m_device->size() + o;
+            pos = size + o;
+        }
+        if (pos < 0 || pos > size) {
+            return -1;
         }
         return m_device->seek(pos) ? 0 : -1;
     }