diff --git a/compiler-rt/lib/hwasan/hwasan_thread_list.h b/compiler-rt/lib/hwasan/hwasan_thread_list.h
--- a/compiler-rt/lib/hwasan/hwasan_thread_list.h
+++ b/compiler-rt/lib/hwasan/hwasan_thread_list.h
@@ -85,7 +85,8 @@
         RoundUpTo(ring_buffer_size_ + sizeof(Thread), ring_buffer_size_ * 2);
   }
 
-  Thread *CreateCurrentThread(const Thread::InitState *state = nullptr) {
+  Thread *CreateCurrentThread(const Thread::InitState *state = nullptr)
+      SANITIZER_EXCLUDES(free_list_mutex_, live_list_mutex_) {
     Thread *t = nullptr;
     {
       SpinMutexLock l(&free_list_mutex_);
@@ -114,7 +115,8 @@
     ReleaseMemoryPagesToOS(start, start + thread_alloc_size_);
   }
 
-  void RemoveThreadFromLiveList(Thread *t) {
+  void RemoveThreadFromLiveList(Thread *t)
+      SANITIZER_EXCLUDES(live_list_mutex_) {
     SpinMutexLock l(&live_list_mutex_);
     for (Thread *&t2 : live_list_)
       if (t2 == t) {
@@ -127,7 +129,7 @@
     CHECK(0 && "thread not found in live list");
   }
 
-  void ReleaseThread(Thread *t) {
+  void ReleaseThread(Thread *t) SANITIZER_EXCLUDES(free_list_mutex_) {
     RemoveThreadStats(t);
     t->Destroy();
     DontNeedThread(t);
@@ -149,7 +151,7 @@
   }
 
   template <class CB>
-  void VisitAllLiveThreads(CB cb) {
+  void VisitAllLiveThreads(CB cb) SANITIZER_EXCLUDES(live_list_mutex_) {
     SpinMutexLock l(&live_list_mutex_);
     for (Thread *t : live_list_) cb(t);
   }
@@ -191,9 +193,11 @@
   uptr thread_alloc_size_;
 
   SpinMutex free_list_mutex_;
-  InternalMmapVector<Thread *> free_list_;
+  InternalMmapVector<Thread *> free_list_
+      SANITIZER_GUARDED_BY(free_list_mutex_);
   SpinMutex live_list_mutex_;
-  InternalMmapVector<Thread *> live_list_;
+  InternalMmapVector<Thread *> live_list_
+      SANITIZER_GUARDED_BY(live_list_mutex_);
 
   ThreadStats stats_;
   SpinMutex stats_mutex_;