check that stream is big enough, accounting for overflow

serge1 · Jun 5, 2024 · 1b1bd73 · 1b1bd73
1 parent 0d10af1
commit 1b1bd73
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/elfio/elfio_section.hpp b/elfio/elfio_section.hpp
@@ -285,7 +285,7 @@ template <class T> class section_impl : public section
         Elf_Xword size = get_size();
         if ( nullptr == data && SHT_NULL != get_type() &&
              SHT_NOBITS != get_type() &&
-             ( sh_offset + size ) <= get_stream_size() ) {
+             sh_offset <= get_stream_size() && size <= (get_stream_size() - sh_offset)) {
             data.reset( new ( std::nothrow ) char[size_t( size ) + 1] );
 
             if ( ( 0 != size ) && ( nullptr != data ) ) {