diff --git a/tests/malloc_test.cpp b/tests/malloc_test.cpp
index d692cf9..4ea6d2b 100644
--- a/tests/malloc_test.cpp
+++ b/tests/malloc_test.cpp
@@ -20,6 +20,7 @@
 #include <limits.h>
 #include <malloc.h>
 #include <pthread.h>
+#include <semaphore.h>
 #include <signal.h>
 #include <stdint.h>
 #include <stdio.h>
@@ -45,6 +46,7 @@
 #include "SignalUtils.h"
 
 #include "platform/bionic/malloc.h"
+#include "platform/bionic/mte.h"
 #include "platform/bionic/mte_kernel.h"
 #include "platform/bionic/reserved_signals.h"
 #include "private/bionic_config.h"
@@ -1259,3 +1261,39 @@
   GTEST_SKIP() << "bionic extension";
 #endif
 }
+
+TEST(android_mallopt, disable_memory_mitigations) {
+#if defined(__BIONIC__)
+  if (!mte_supported()) {
+    GTEST_SKIP() << "This function can only be tested with MTE";
+  }
+
+#ifdef ANDROID_EXPERIMENTAL_MTE
+  sem_t sem;
+  ASSERT_EQ(0, sem_init(&sem, 0, 0));
+
+  pthread_t thread;
+  ASSERT_EQ(0, pthread_create(
+                   &thread, nullptr,
+                   [](void* ptr) -> void* {
+                     auto* sem = reinterpret_cast<sem_t*>(ptr);
+                     sem_wait(sem);
+                     return reinterpret_cast<void*>(prctl(PR_GET_TAGGED_ADDR_CTRL, 0, 0, 0, 0));
+                   },
+                   &sem));
+
+  ASSERT_TRUE(android_mallopt(M_DISABLE_MEMORY_MITIGATIONS, nullptr, 0));
+  ASSERT_EQ(0, sem_post(&sem));
+
+  int my_tagged_addr_ctrl = prctl(PR_GET_TAGGED_ADDR_CTRL, 0, 0, 0, 0);
+  ASSERT_EQ(PR_MTE_TCF_NONE, my_tagged_addr_ctrl & PR_MTE_TCF_MASK);
+
+  void* retval;
+  ASSERT_EQ(0, pthread_join(thread, &retval));
+  int thread_tagged_addr_ctrl = reinterpret_cast<uintptr_t>(retval);
+  ASSERT_EQ(my_tagged_addr_ctrl, thread_tagged_addr_ctrl);
+#endif
+#else
+  GTEST_SKIP() << "bionic extension";
+#endif
+}
diff --git a/tests/pthread_test.cpp b/tests/pthread_test.cpp
index 851b86f..d9ad3cc 100644
--- a/tests/pthread_test.cpp
+++ b/tests/pthread_test.cpp
@@ -2975,3 +2975,48 @@
   spin_helper.UnSpin();
   ASSERT_EQ(0, pthread_join(t, nullptr));
 }
+
+extern "C" bool android_run_on_all_threads(bool (*func)(void*), void* arg);
+
+TEST(pthread, run_on_all_threads) {
+#if defined(__BIONIC__)
+  pthread_t t;
+  ASSERT_EQ(
+      0, pthread_create(
+             &t, nullptr,
+             [](void*) -> void* {
+               pthread_attr_t detached;
+               if (pthread_attr_init(&detached) != 0 ||
+                   pthread_attr_setdetachstate(&detached, PTHREAD_CREATE_DETACHED) != 0) {
+                 return reinterpret_cast<void*>(errno);
+               }
+
+               for (int i = 0; i != 1000; ++i) {
+                 pthread_t t1, t2;
+                 if (pthread_create(
+                         &t1, &detached, [](void*) -> void* { return nullptr; }, nullptr) != 0 ||
+                     pthread_create(
+                         &t2, nullptr, [](void*) -> void* { return nullptr; }, nullptr) != 0 ||
+                     pthread_join(t2, nullptr) != 0) {
+                   return reinterpret_cast<void*>(errno);
+                 }
+               }
+
+               if (pthread_attr_destroy(&detached) != 0) {
+                 return reinterpret_cast<void*>(errno);
+               }
+               return nullptr;
+             },
+             nullptr));
+
+  for (int i = 0; i != 1000; ++i) {
+    ASSERT_TRUE(android_run_on_all_threads([](void* arg) { return arg == nullptr; }, nullptr));
+  }
+
+  void *retval;
+  ASSERT_EQ(0, pthread_join(t, &retval));
+  ASSERT_EQ(nullptr, retval);
+#else
+  GTEST_SKIP() << "bionic-only test";
+#endif
+}
diff --git a/tests/struct_layout_test.cpp b/tests/struct_layout_test.cpp
index 9da702c..00fd4d5 100644
--- a/tests/struct_layout_test.cpp
+++ b/tests/struct_layout_test.cpp
@@ -30,7 +30,7 @@
 #define CHECK_OFFSET(name, field, offset) \
     check_offset(#name, #field, offsetof(name, field), offset);
 #ifdef __LP64__
-  CHECK_SIZE(pthread_internal_t, 768);
+  CHECK_SIZE(pthread_internal_t, 776);
   CHECK_OFFSET(pthread_internal_t, next, 0);
   CHECK_OFFSET(pthread_internal_t, prev, 8);
   CHECK_OFFSET(pthread_internal_t, tid, 16);
@@ -44,17 +44,17 @@
   CHECK_OFFSET(pthread_internal_t, alternate_signal_stack, 128);
   CHECK_OFFSET(pthread_internal_t, shadow_call_stack_guard_region, 136);
   CHECK_OFFSET(pthread_internal_t, stack_top, 144);
-  CHECK_OFFSET(pthread_internal_t, startup_handshake_lock, 152);
-  CHECK_OFFSET(pthread_internal_t, mmap_base, 160);
-  CHECK_OFFSET(pthread_internal_t, mmap_size, 168);
-  CHECK_OFFSET(pthread_internal_t, mmap_base_unguarded, 176);
-  CHECK_OFFSET(pthread_internal_t, mmap_size_unguarded, 184);
-  CHECK_OFFSET(pthread_internal_t, vma_name_buffer, 192);
-  CHECK_OFFSET(pthread_internal_t, thread_local_dtors, 224);
-  CHECK_OFFSET(pthread_internal_t, current_dlerror, 232);
-  CHECK_OFFSET(pthread_internal_t, dlerror_buffer, 240);
-  CHECK_OFFSET(pthread_internal_t, bionic_tls, 752);
-  CHECK_OFFSET(pthread_internal_t, errno_value, 760);
+  CHECK_OFFSET(pthread_internal_t, startup_handshake_lock, 156);
+  CHECK_OFFSET(pthread_internal_t, mmap_base, 168);
+  CHECK_OFFSET(pthread_internal_t, mmap_size, 176);
+  CHECK_OFFSET(pthread_internal_t, mmap_base_unguarded, 184);
+  CHECK_OFFSET(pthread_internal_t, mmap_size_unguarded, 192);
+  CHECK_OFFSET(pthread_internal_t, vma_name_buffer, 200);
+  CHECK_OFFSET(pthread_internal_t, thread_local_dtors, 232);
+  CHECK_OFFSET(pthread_internal_t, current_dlerror, 240);
+  CHECK_OFFSET(pthread_internal_t, dlerror_buffer, 248);
+  CHECK_OFFSET(pthread_internal_t, bionic_tls, 760);
+  CHECK_OFFSET(pthread_internal_t, errno_value, 768);
   CHECK_SIZE(bionic_tls, 12200);
   CHECK_OFFSET(bionic_tls, key_data, 0);
   CHECK_OFFSET(bionic_tls, locale, 2080);
@@ -71,7 +71,7 @@
   CHECK_OFFSET(bionic_tls, fdtrack_disabled, 12192);
   CHECK_OFFSET(bionic_tls, padding, 12193);
 #else
-  CHECK_SIZE(pthread_internal_t, 664);
+  CHECK_SIZE(pthread_internal_t, 668);
   CHECK_OFFSET(pthread_internal_t, next, 0);
   CHECK_OFFSET(pthread_internal_t, prev, 4);
   CHECK_OFFSET(pthread_internal_t, tid, 8);
@@ -85,17 +85,17 @@
   CHECK_OFFSET(pthread_internal_t, alternate_signal_stack, 68);
   CHECK_OFFSET(pthread_internal_t, shadow_call_stack_guard_region, 72);
   CHECK_OFFSET(pthread_internal_t, stack_top, 76);
-  CHECK_OFFSET(pthread_internal_t, startup_handshake_lock, 80);
-  CHECK_OFFSET(pthread_internal_t, mmap_base, 88);
-  CHECK_OFFSET(pthread_internal_t, mmap_size, 92);
-  CHECK_OFFSET(pthread_internal_t, mmap_base_unguarded, 96);
-  CHECK_OFFSET(pthread_internal_t, mmap_size_unguarded, 100);
-  CHECK_OFFSET(pthread_internal_t, vma_name_buffer, 104);
-  CHECK_OFFSET(pthread_internal_t, thread_local_dtors, 136);
-  CHECK_OFFSET(pthread_internal_t, current_dlerror, 140);
-  CHECK_OFFSET(pthread_internal_t, dlerror_buffer, 144);
-  CHECK_OFFSET(pthread_internal_t, bionic_tls, 656);
-  CHECK_OFFSET(pthread_internal_t, errno_value, 660);
+  CHECK_OFFSET(pthread_internal_t, startup_handshake_lock, 84);
+  CHECK_OFFSET(pthread_internal_t, mmap_base, 92);
+  CHECK_OFFSET(pthread_internal_t, mmap_size, 96);
+  CHECK_OFFSET(pthread_internal_t, mmap_base_unguarded, 100);
+  CHECK_OFFSET(pthread_internal_t, mmap_size_unguarded, 104);
+  CHECK_OFFSET(pthread_internal_t, vma_name_buffer, 108);
+  CHECK_OFFSET(pthread_internal_t, thread_local_dtors, 140);
+  CHECK_OFFSET(pthread_internal_t, current_dlerror, 144);
+  CHECK_OFFSET(pthread_internal_t, dlerror_buffer, 148);
+  CHECK_OFFSET(pthread_internal_t, bionic_tls, 660);
+  CHECK_OFFSET(pthread_internal_t, errno_value, 664);
   CHECK_SIZE(bionic_tls, 11080);
   CHECK_OFFSET(bionic_tls, key_data, 0);
   CHECK_OFFSET(bionic_tls, locale, 1040);