diff --git a/services/surfaceflinger/tests/LayerCallback_test.cpp b/services/surfaceflinger/tests/LayerCallback_test.cpp
index 26dbc76..79886bd 100644
--- a/services/surfaceflinger/tests/LayerCallback_test.cpp
+++ b/services/surfaceflinger/tests/LayerCallback_test.cpp
@@ -1224,4 +1224,75 @@
     EXPECT_NO_FATAL_FAILURE(waitForCallback(callback, expected, true));
 }
 
+TEST_F(LayerCallbackTest, SetNullBuffer) {
+    sp<SurfaceControl> layer;
+    ASSERT_NO_FATAL_FAILURE(layer = createLayerWithBuffer());
+
+    Transaction transaction;
+    CallbackHelper callback;
+    int err = fillTransaction(transaction, &callback, layer, /*setBuffer=*/true,
+                              /*setBackgroundColor=*/false);
+    if (err) {
+        GTEST_SUCCEED() << "test not supported";
+        return;
+    }
+    transaction.apply();
+
+    {
+        ExpectedResult expected;
+        expected.addSurface(ExpectedResult::Transaction::PRESENTED, layer,
+                            ExpectedResult::Buffer::ACQUIRED,
+                            ExpectedResult::PreviousBuffer::NOT_RELEASED);
+        EXPECT_NO_FATAL_FAILURE(waitForCallback(callback, expected, true));
+    }
+
+    transaction.setBuffer(layer, nullptr);
+    transaction.addTransactionCompletedCallback(callback.function, callback.getContext());
+    transaction.apply();
+
+    {
+        ExpectedResult expected;
+        expected.addSurface(ExpectedResult::Transaction::PRESENTED, layer,
+                            ExpectedResult::Buffer::ACQUIRED_NULL,
+                            ExpectedResult::PreviousBuffer::RELEASED);
+        EXPECT_NO_FATAL_FAILURE(waitForCallback(callback, expected, true));
+    }
+
+    err = fillTransaction(transaction, &callback, layer, /*setBuffer=*/true,
+                          /*setBackgroundColor=*/false);
+    if (err) {
+        GTEST_SUCCEED() << "test not supported";
+        return;
+    }
+
+    transaction.apply();
+
+    {
+        ExpectedResult expected;
+        expected.addSurface(ExpectedResult::Transaction::PRESENTED, layer,
+                            ExpectedResult::Buffer::ACQUIRED,
+                            ExpectedResult::PreviousBuffer::NOT_RELEASED);
+        EXPECT_NO_FATAL_FAILURE(waitForCallback(callback, expected, true));
+    }
+}
+
+TEST_F(LayerCallbackTest, SetNullBufferOnLayerWithoutBuffer) {
+    sp<SurfaceControl> layer;
+    ASSERT_NO_FATAL_FAILURE(layer = createLayerWithBuffer());
+
+    Transaction transaction;
+    transaction.setBuffer(layer, nullptr);
+    CallbackHelper callback;
+    transaction.addTransactionCompletedCallback(callback.function, callback.getContext());
+    transaction.apply();
+
+    {
+        ExpectedResult expected;
+        expected.addSurface(ExpectedResult::Transaction::NOT_PRESENTED, layer,
+                            ExpectedResult::Buffer::NOT_ACQUIRED,
+                            ExpectedResult::PreviousBuffer::NOT_RELEASED);
+        EXPECT_NO_FATAL_FAILURE(waitForCallback(callback, expected, true));
+    }
+}
+
 } // namespace android
diff --git a/services/surfaceflinger/tests/LayerRenderTypeTransaction_test.cpp b/services/surfaceflinger/tests/LayerRenderTypeTransaction_test.cpp
index 0b8c51e..b8068f7 100644
--- a/services/surfaceflinger/tests/LayerRenderTypeTransaction_test.cpp
+++ b/services/surfaceflinger/tests/LayerRenderTypeTransaction_test.cpp
@@ -1636,6 +1636,65 @@
         getScreenCapture()->expectColor(Rect(0, 0, 32, 32), expectedColor, tolerance);
     }
 }
+
+TEST_P(LayerRenderTypeTransactionTest, SetNullBuffer) {
+    const Rect bounds(0, 0, 32, 32);
+    sp<SurfaceControl> layer;
+    ASSERT_NO_FATAL_FAILURE(
+            layer = createLayer("test", 32, 32, ISurfaceComposerClient::eFXSurfaceBufferState));
+
+    sp<GraphicBuffer> buffer =
+            sp<GraphicBuffer>::make(32u, 32u, PIXEL_FORMAT_RGBA_8888, 1u, kUsageFlags, "test");
+
+    ASSERT_NO_FATAL_FAILURE(TransactionUtils::fillGraphicBufferColor(buffer, bounds, Color::GREEN));
+    Transaction().setBuffer(layer, buffer).apply();
+    {
+        SCOPED_TRACE("before null buffer");
+        auto shot = getScreenCapture();
+        shot->expectColor(bounds, Color::GREEN);
+    }
+
+    Transaction().setBuffer(layer, nullptr).apply();
+    {
+        SCOPED_TRACE("null buffer removes buffer");
+        auto shot = getScreenCapture();
+        shot->expectColor(bounds, Color::BLACK);
+    }
+
+    Transaction().setBuffer(layer, buffer).apply();
+    {
+        SCOPED_TRACE("after null buffer");
+        auto shot = getScreenCapture();
+        shot->expectColor(bounds, Color::GREEN);
+    }
+}
+
+TEST_P(LayerRenderTypeTransactionTest, SetNullBufferOnLayerWithoutBuffer) {
+    const Rect bounds(0, 0, 32, 32);
+    sp<SurfaceControl> layer;
+    ASSERT_NO_FATAL_FAILURE(
+            layer = createLayer("test", 32, 32, ISurfaceComposerClient::eFXSurfaceBufferState));
+    {
+        SCOPED_TRACE("starting state");
+        auto shot = getScreenCapture();
+        shot->expectColor(bounds, Color::BLACK);
+    }
+
+    Transaction().setBuffer(layer, nullptr).apply();
+    {
+        SCOPED_TRACE("null buffer has no effect");
+        auto shot = getScreenCapture();
+        shot->expectColor(bounds, Color::BLACK);
+    }
+
+    Transaction().setBuffer(layer, nullptr).apply();
+    {
+        SCOPED_TRACE("null buffer has no effect");
+        auto shot = getScreenCapture();
+        shot->expectColor(bounds, Color::BLACK);
+    }
+}
+
 } // namespace android
 
 // TODO(b/129481165): remove the #pragma below and fix conversion issues
diff --git a/services/surfaceflinger/tests/unittests/TransactionApplicationTest.cpp b/services/surfaceflinger/tests/unittests/TransactionApplicationTest.cpp
index 03c4e71..dbb7c6c 100644
--- a/services/surfaceflinger/tests/unittests/TransactionApplicationTest.cpp
+++ b/services/surfaceflinger/tests/unittests/TransactionApplicationTest.cpp
@@ -274,6 +274,34 @@
     EXPECT_EQ(nullptr, ret.get());
 }
 
+class FakeExternalTexture : public renderengine::ExternalTexture {
+    const sp<GraphicBuffer> mEmptyBuffer = nullptr;
+    uint32_t mWidth;
+    uint32_t mHeight;
+    uint64_t mId;
+    PixelFormat mPixelFormat;
+    uint64_t mUsage;
+
+public:
+    FakeExternalTexture(BufferData& bufferData)
+          : mWidth(bufferData.getWidth()),
+            mHeight(bufferData.getHeight()),
+            mId(bufferData.getId()),
+            mPixelFormat(bufferData.getPixelFormat()),
+            mUsage(bufferData.getUsage()) {}
+    const sp<GraphicBuffer>& getBuffer() const { return mEmptyBuffer; }
+    bool hasSameBuffer(const renderengine::ExternalTexture& other) const override {
+        return getId() == other.getId();
+    }
+    uint32_t getWidth() const override { return mWidth; }
+    uint32_t getHeight() const override { return mHeight; }
+    uint64_t getId() const override { return mId; }
+    PixelFormat getPixelFormat() const override { return mPixelFormat; }
+    uint64_t getUsage() const override { return mUsage; }
+    void remapBuffer() override {}
+    ~FakeExternalTexture() = default;
+};
+
 class LatchUnsignaledTest : public TransactionApplicationTest {
 public:
     void TearDown() override {
@@ -346,7 +374,11 @@
             std::vector<ResolvedComposerState> resolvedStates;
             resolvedStates.reserve(transaction.states.size());
             for (auto& state : transaction.states) {
-                resolvedStates.emplace_back(std::move(state));
+                ResolvedComposerState resolvedState;
+                resolvedState.state = std::move(state.state);
+                resolvedState.externalTexture =
+                        std::make_shared<FakeExternalTexture>(*resolvedState.state.bufferData);
+                resolvedStates.emplace_back(resolvedState);
             }
 
             TransactionState transactionState(transaction.frameTimelineInfo, resolvedStates,