#include "base/bind.h"
#include "base/memory/shared_memory.h"
#include "base/metrics/histogram.h"
+#include "base/numerics/safe_math.h"
#include "base/process/process.h"
#include "base/strings/stringprintf.h"
#include "content/browser/media/capture/web_contents_audio_input_stream.h"
// Create the shared memory and share it with the renderer process
// using a new SyncWriter object.
- if (!entry->shared_memory.CreateAndMapAnonymous(
- segment_size * entry->shared_memory_segment_count)) {
+ base::CheckedNumeric<uint32> size = segment_size;
+ size *= entry->shared_memory_segment_count;
+ if (!size.IsValid() ||
+ !entry->shared_memory.CreateAndMapAnonymous(size.ValueOrDie())) {
// If creation of shared memory failed then send an error message.
SendErrorMessage(stream_id, SHARED_MEMORY_CREATE_FAILED);
return;