Merge pull request #542 from PragmaTwice/patch-1

Avoid integer overflow UB in basic_json_parser
danielaparker · Oct 7, 2024 · a500279 · a500279
2 parents fffa250 + 5a0ec6e
commit a500279
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/include/jsoncons/json_parser.hpp b/include/jsoncons/json_parser.hpp
@@ -177,7 +177,7 @@ class basic_json_parser : public ser_context
     {
         string_buffer_.reserve(initial_string_buffer_capacity);
 
-        std::size_t initial_stack_capacity = (options.max_nesting_depth()+2) <= default_initial_stack_capacity ? (options.max_nesting_depth()+2) : default_initial_stack_capacity;
+        std::size_t initial_stack_capacity = options.max_nesting_depth() <= (default_initial_stack_capacity-2) ? (options.max_nesting_depth()+2) : default_initial_stack_capacity;
         state_stack_.reserve(initial_stack_capacity );
         push_state(json_parse_state::root);