diff options
Diffstat (limited to 'src/node_file.cc')
| -rw-r--r-- | src/node_file.cc | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/src/node_file.cc b/src/node_file.cc index 4301cdc7b4..c4e3b83392 100644 --- a/src/node_file.cc +++ b/src/node_file.cc @@ -88,7 +88,7 @@ constexpr char kPathSeparator = '/'; const char* const kPathSeparator = "\\/"; #endif -#define GET_OFFSET(a) ((a)->IsNumber() ? (a).As<Integer>()->Value() : -1) +#define GET_OFFSET(a) (IsSafeJsInt(a) ? (a).As<Integer>()->Value() : -1) #define TRACE_NAME(name) "fs.sync." #name #define GET_TRACE_ENABLED \ (*TRACE_EVENT_API_GET_CATEGORY_GROUP_ENABLED \ @@ -1669,9 +1669,11 @@ static void WriteBuffer(const FunctionCallbackInfo<Value>& args) { char* buffer_data = Buffer::Data(buffer_obj); size_t buffer_length = Buffer::Length(buffer_obj); - CHECK(args[2]->IsInt32()); - const size_t off = static_cast<size_t>(args[2].As<Int32>()->Value()); - CHECK_LE(off, buffer_length); + CHECK(IsSafeJsInt(args[2])); + const int64_t off_64 = args[2].As<Integer>()->Value(); + CHECK_GE(off_64, 0); + CHECK_LE(static_cast<uint64_t>(off_64), buffer_length); + const size_t off = static_cast<size_t>(off_64); CHECK(args[3]->IsInt32()); const size_t len = static_cast<size_t>(args[3].As<Int32>()->Value()); |