X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/19c0043f74cb81d3dc32a8c58be3f51654ffddbc..12b5f4b4d2d8a07962da7ba3b78c8c1ec2634a67:/src/common/xpmdecod.cpp?ds=sidebyside

diff --git a/src/common/xpmdecod.cpp b/src/common/xpmdecod.cpp
index 8d38a3132e..54e54c5221 100644
--- a/src/common/xpmdecod.cpp
+++ b/src/common/xpmdecod.cpp
@@ -122,7 +122,8 @@ bool wxXPMDecoder::CanRead(wxInputStream& stream)
     if ( !stream.Read(buf, WXSIZEOF(buf)) )
         return false;
 
-    stream.SeekI(-(wxFileOffset)WXSIZEOF(buf), wxFromCurrent);
+    if (stream.SeekI(-(wxFileOffset)WXSIZEOF(buf), wxFromCurrent) == wxInvalidOffset)
+        return false;
 
     return memcmp(buf, "/* XPM */", WXSIZEOF(buf)) == 0;
 }