commit 64636a97482cfc84a5113e117ffc30c37bebb1e5
author Vitaly Buka <vitalybuka@google.com> Tue Nov 23 20:05:25 2021 -0800
committer Copybara-Service <copybara-worker@google.com> Tue Nov 23 20:36:47 2021 -0800
tree 49d98aa16067a78725d1159821f3bb7df48edeb2
parent 5eafb23f17df4125b220f382bb1c9cee4d9260fb

[sanitizer] Fail instead of crash without real_pthread_create

GitOrigin-RevId: 55792b5ac44e4c0d3a8feb8a793d60d58e38cf20

lib/sanitizer_common/sanitizer_linux.cpp

diff --git a/lib/sanitizer_common/sanitizer_linux.cpp b/lib/sanitizer_common/sanitizer_linux.cpp
index 596037d..ad70d8f 100644
--- a/lib/sanitizer_common/sanitizer_linux.cpp
+++ b/lib/sanitizer_common/sanitizer_linux.cpp
@@ -1760,6 +1760,8 @@
 
 #if !SANITIZER_GO
 void *internal_start_thread(void *(*func)(void *arg), void *arg) {
+  if (&real_pthread_create == 0)
+    return nullptr;
   // Start the thread with signals blocked, otherwise it can steal user signals.
   ScopedBlockSignals block(nullptr);
   void *th;