diff --git a/microdroid/init.rc b/microdroid/init.rc
index ce0cab4..70c22d4 100644
--- a/microdroid/init.rc
+++ b/microdroid/init.rc
@@ -98,7 +98,7 @@
     mount rootfs rootfs / remount bind ro nodev
 
     # TODO(b/185767624): change the hard-coded size?
-    mount tmpfs tmpfs /data noatime nosuid nodev rw size=128M
+    mount tmpfs tmpfs /data noatime nosuid nodev noexec rw size=128M
 
     # We chown/chmod /data again so because mount is run as root + defaults
     chown system system /data
diff --git a/tests/aidl/com/android/microdroid/testservice/ITestService.aidl b/tests/aidl/com/android/microdroid/testservice/ITestService.aidl
index c1e39db..66dbe4b 100644
--- a/tests/aidl/com/android/microdroid/testservice/ITestService.aidl
+++ b/tests/aidl/com/android/microdroid/testservice/ITestService.aidl
@@ -59,6 +59,9 @@
     /* get file permissions of the give file by stat'ing it */
     int getFilePermissions(String path);
 
+    /** Returns flags for the given mountPoint. */
+    int getMountFlags(String mountPoint);
+
     /**
      * Request the service to exit, triggering the termination of the VM. This may cause any
      * requests in flight to fail.
diff --git a/tests/helper/src/java/com/android/microdroid/test/device/MicrodroidDeviceTestBase.java b/tests/helper/src/java/com/android/microdroid/test/device/MicrodroidDeviceTestBase.java
index 4a33d6f..2d568d0 100644
--- a/tests/helper/src/java/com/android/microdroid/test/device/MicrodroidDeviceTestBase.java
+++ b/tests/helper/src/java/com/android/microdroid/test/device/MicrodroidDeviceTestBase.java
@@ -444,6 +444,7 @@
         public byte[] mBcc;
         public long[] mTimings;
         public int mFileMode;
+        public int mMountFlags;
 
         public void assertNoException() {
             if (mException != null) {
diff --git a/tests/testapk/Android.bp b/tests/testapk/Android.bp
index 9f80433..fe8f5c9 100644
--- a/tests/testapk/Android.bp
+++ b/tests/testapk/Android.bp
@@ -63,6 +63,7 @@
     static_libs: [
         "com.android.microdroid.testservice-ndk",
         "libbase",
+        "libfstab",
         "libfsverity_digests_proto_cc",
         "liblog",
         "libprotobuf-cpp-lite-ndk",
diff --git a/tests/testapk/src/java/com/android/microdroid/test/MicrodroidTests.java b/tests/testapk/src/java/com/android/microdroid/test/MicrodroidTests.java
index 0a81542..e0abe98 100644
--- a/tests/testapk/src/java/com/android/microdroid/test/MicrodroidTests.java
+++ b/tests/testapk/src/java/com/android/microdroid/test/MicrodroidTests.java
@@ -1816,6 +1816,34 @@
                 .isEqualTo(OsConstants.S_IRUSR | OsConstants.S_IXUSR);
     }
 
+    // Taken from bionic/libs/kernel/uapi/linux/mounth.h.
+    private static final int MS_NOEXEC = 8;
+
+    @Test
+    public void dataIsMountedWithNoExec() throws Exception {
+        assumeSupportedKernel();
+
+        VirtualMachineConfig vmConfig =
+                newVmConfigBuilder()
+                        .setPayloadBinaryName("MicrodroidTestNativeLib.so")
+                        .setDebugLevel(DEBUG_LEVEL_FULL)
+                        .build();
+        VirtualMachine vm = forceCreateNewVirtualMachine("test_vm_data_mount", vmConfig);
+
+        TestResults testResults =
+                runVmTestService(
+                        TAG,
+                        vm,
+                        (ts, tr) -> {
+                            tr.mMountFlags = ts.getMountFlags("/data");
+                        });
+
+        assertThat(testResults.mException).isNull();
+        assertWithMessage("/data should be mounted with MS_NOEXEC")
+                .that(testResults.mMountFlags & MS_NOEXEC)
+                .isEqualTo(MS_NOEXEC);
+    }
+
     private static class VmShareServiceConnection implements ServiceConnection {
 
         private final CountDownLatch mLatch = new CountDownLatch(1);
diff --git a/tests/testapk/src/native/testbinary.cpp b/tests/testapk/src/native/testbinary.cpp
index 07c8cd4..285dae9 100644
--- a/tests/testapk/src/native/testbinary.cpp
+++ b/tests/testapk/src/native/testbinary.cpp
@@ -21,6 +21,7 @@
 #include <android-base/scopeguard.h>
 #include <android/log.h>
 #include <fcntl.h>
+#include <fstab/fstab.h>
 #include <fsverity_digests.pb.h>
 #include <linux/vm_sockets.h>
 #include <stdint.h>
@@ -40,6 +41,10 @@
 using android::base::make_scope_guard;
 using android::base::Result;
 using android::base::unique_fd;
+using android::fs_mgr::Fstab;
+using android::fs_mgr::FstabEntry;
+using android::fs_mgr::GetEntryForMountPoint;
+using android::fs_mgr::ReadFstabFromFile;
 
 using aidl::com::android::microdroid::testservice::BnTestService;
 using ndk::ScopedAStatus;
@@ -263,6 +268,22 @@
             return ScopedAStatus::ok();
         }
 
+        ScopedAStatus getMountFlags(const std::string& mount_point, int32_t* out) override {
+            Fstab fstab;
+            if (!ReadFstabFromFile("/proc/mounts", &fstab)) {
+                return ScopedAStatus::fromExceptionCodeWithMessage(EX_SERVICE_SPECIFIC,
+                                                                   "Failed to read /proc/mounts");
+            }
+            FstabEntry* entry = GetEntryForMountPoint(&fstab, mount_point);
+            if (entry == nullptr) {
+                std::string msg = mount_point + " not found in /proc/mounts";
+                return ScopedAStatus::fromExceptionCodeWithMessage(EX_SERVICE_SPECIFIC,
+                                                                   msg.c_str());
+            }
+            *out = entry->flags;
+            return ScopedAStatus::ok();
+        }
+
         ScopedAStatus quit() override { exit(0); }
     };
     auto testService = ndk::SharedRefBase::make<TestService>();
diff --git a/tests/vmshareapp/src/java/com/android/microdroid/test/sharevm/VmShareServiceImpl.java b/tests/vmshareapp/src/java/com/android/microdroid/test/sharevm/VmShareServiceImpl.java
index 8c995d7..467b98b 100644
--- a/tests/vmshareapp/src/java/com/android/microdroid/test/sharevm/VmShareServiceImpl.java
+++ b/tests/vmshareapp/src/java/com/android/microdroid/test/sharevm/VmShareServiceImpl.java
@@ -235,6 +235,11 @@
         }
 
         @Override
+        public int getMountFlags(String path) throws RemoteException {
+            throw new UnsupportedOperationException("Not supported");
+        }
+
+        @Override
         public void quit() throws RemoteException {
             throw new UnsupportedOperationException("Not supported");
         }