Index: lib/msan/msan_interceptors.cc
===================================================================
--- lib/msan/msan_interceptors.cc
+++ lib/msan/msan_interceptors.cc
@@ -1085,6 +1085,11 @@
   return res;
 }
 
+#if SANITIZER_NETBSD
+INTERCEPTOR(void, __libc_thr_keycreate, void *m, void (*dtor)(void *value)) \
+  ALIAS(WRAPPER_NAME(pthread_key_create));
+#endif
+
 INTERCEPTOR(int, pthread_join, void *th, void **retval) {
   ENSURE_MSAN_INITED();
   int res = REAL(pthread_join)(th, retval);
@@ -1642,6 +1647,10 @@
   INTERCEPT_FUNCTION(openpty);
   INTERCEPT_FUNCTION(forkpty);
 
+#if SANITIZER_NETBSD
+  INTERCEPT_FUNCTION(__libc_thr_keycreate);
+#endif
+
   inited = 1;
 }
 } // namespace __msan