diff --git a/compiler-rt/test/cfi/cross-dso/target_out_of_bounds.cpp b/compiler-rt/test/cfi/cross-dso/target_out_of_bounds.cpp
--- a/compiler-rt/test/cfi/cross-dso/target_out_of_bounds.cpp
+++ b/compiler-rt/test/cfi/cross-dso/target_out_of_bounds.cpp
@@ -10,6 +10,12 @@
 
 // REQUIRES: cxxabi
 
+// These checks are unsupported on newer versions of Android due to the
+// following patch that makes it harder to defeat ASLR by not mapping unused
+// shadow regions:
+// https://android-review.googlesource.com/c/platform/bionic/+/1333960
+// UNSUPPORTED: android
+
 #include <stdio.h>
 #include <stdint.h>
 #include <stdlib.h>
diff --git a/compiler-rt/test/lsan/TestCases/Linux/use_tls_dynamic.cpp b/compiler-rt/test/lsan/TestCases/Linux/use_tls_dynamic.cpp
--- a/compiler-rt/test/lsan/TestCases/Linux/use_tls_dynamic.cpp
+++ b/compiler-rt/test/lsan/TestCases/Linux/use_tls_dynamic.cpp
@@ -23,6 +23,11 @@
 int main(int argc, char *argv[]) {
   std::string path = std::string(argv[0]) + "-so.so";
 
+  // Clear any previous errors. On Android, the dynamic loader can have some
+  // left over dlerror() messages due to a missing symbol resolution for a
+  // deprecated malloc function.
+  dlerror();
+
   void *handle = dlopen(path.c_str(), RTLD_LAZY);
   assert(handle != 0);
   typedef void **(* store_t)(void *p);
@@ -31,10 +36,10 @@
   // Sometimes dlerror() occurs when we broke the interceptors.
   // Add the message here to make the error more obvious.
   const char *dlerror_msg = dlerror();
-  assert(dlerror_msg == nullptr);
   if (dlerror_msg != nullptr) {
     fprintf(stderr, "DLERROR: %s\n", dlerror_msg);
     fflush(stderr);
+    abort();
   }
   void *p = malloc(1337);
   // If we don't  know about dynamic TLS, we will return a false leak above.
diff --git a/compiler-rt/test/lsan/TestCases/stale_stack_leak.cpp b/compiler-rt/test/lsan/TestCases/stale_stack_leak.cpp
--- a/compiler-rt/test/lsan/TestCases/stale_stack_leak.cpp
+++ b/compiler-rt/test/lsan/TestCases/stale_stack_leak.cpp
@@ -1,6 +1,15 @@
 // Test that out-of-scope local variables are ignored by LSan.
 // RUN: LSAN_BASE="report_objects=1:use_registers=0:use_stacks=1"
-// RUN: %clangxx_lsan %s -o %t
+
+// LSan-in-ASan fails at -O0 on aarch64, because the stack use-after-return
+// instrumentation stashes the argument to `PutPointerOnStaleStack` on the stack
+// in order to conditionally call __asan_stack_malloc. This subverts our
+// expectations for this test, where we assume the pointer is never stashed
+// except at the bottom of the dead frame. Building at -O1 or greater solves
+// this problem, because the compiler is smart enough to stash the argument in a
+// callee-saved register for rematerialization instead.
+// RUN: %clangxx_lsan -O1 %s -o %t
+
 // RUN: %env_lsan_opts=$LSAN_BASE not %run %t 2>&1 | FileCheck %s
 // RUN: %env_lsan_opts=$LSAN_BASE":exitcode=0" %run %t 2>&1 | FileCheck --check-prefix=CHECK-sanity %s
 //