From 76e7a0ff55f8f3d622a2fdf4a0e91ba6213862a2 Mon Sep 17 00:00:00 2001
From: Vladimir Glavnyy <31897320+vglavnyy@users.noreply.github.com>
Date: Sat, 30 Jan 2021 21:43:31 +0700
Subject: [PATCH] [fuzzer] Limit parser_fuzzer execution time (#6431)

Limit the length of the fuzzer input to 16384 characters to prevent timeout
in JSON parser (Vector of tables with key).

Related oss-fuzz issues:
- 5742497110294528
---
 tests/fuzzer/flatbuffers_monster_fuzzer.cc | 2 +-
 tests/fuzzer/flatbuffers_parser_fuzzer.cc  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/tests/fuzzer/flatbuffers_monster_fuzzer.cc b/tests/fuzzer/flatbuffers_monster_fuzzer.cc
index 5702189ac..1609c71e8 100644
--- a/tests/fuzzer/flatbuffers_monster_fuzzer.cc
+++ b/tests/fuzzer/flatbuffers_monster_fuzzer.cc
@@ -35,7 +35,7 @@ static fs::path exe_path_;
 namespace {
 
 static constexpr size_t kMinInputLength = 1;
-static constexpr size_t kMaxInputLength = 99000;
+static constexpr size_t kMaxInputLength = 16384;
 
 static constexpr uint8_t flags_strict_json = 0x80;
 static constexpr uint8_t flags_skip_unexpected_fields_in_json = 0x40;
diff --git a/tests/fuzzer/flatbuffers_parser_fuzzer.cc b/tests/fuzzer/flatbuffers_parser_fuzzer.cc
index d4bbb0e2f..0b74f2ceb 100644
--- a/tests/fuzzer/flatbuffers_parser_fuzzer.cc
+++ b/tests/fuzzer/flatbuffers_parser_fuzzer.cc
@@ -10,7 +10,7 @@
 #include "test_init.h"
 
 static constexpr size_t kMinInputLength = 1;
-static constexpr size_t kMaxInputLength = 33000;
+static constexpr size_t kMaxInputLength = 16384;
 
 static constexpr uint8_t flags_strict_json = 0x80;
 static constexpr uint8_t flags_skip_unexpected_fields_in_json = 0x40;