diff --git a/libs/gui/include/gui/WindowInfo.h b/libs/gui/include/gui/WindowInfo.h
index 4d4c5e4..b72b71a 100644
--- a/libs/gui/include/gui/WindowInfo.h
+++ b/libs/gui/include/gui/WindowInfo.h
@@ -176,6 +176,8 @@
                 static_cast<uint32_t>(os::InputConfig::INTERCEPTS_STYLUS),
         CLONE =
                 static_cast<uint32_t>(os::InputConfig::CLONE),
+        GLOBAL_STYLUS_BLOCKS_TOUCH =
+                static_cast<uint32_t>(os::InputConfig::GLOBAL_STYLUS_BLOCKS_TOUCH),
         // clang-format on
     };
 
diff --git a/libs/input/InputTransport.cpp b/libs/input/InputTransport.cpp
index 09e98d0..669f801 100644
--- a/libs/input/InputTransport.cpp
+++ b/libs/input/InputTransport.cpp
@@ -646,7 +646,7 @@
               "action=%s, actionButton=0x%08x, flags=0x%x, edgeFlags=0x%x, "
               "metaState=0x%x, buttonState=0x%x, classification=%s,"
               "xPrecision=%f, yPrecision=%f, downTime=%" PRId64 ", eventTime=%" PRId64 ", "
-              "pointerCount=%" PRIu32 " \n%s",
+              "pointerCount=%" PRIu32 "\n%s",
               mChannel->getName().c_str(), __func__, seq, eventId, deviceId,
               inputEventSourceToString(source).c_str(), displayId,
               MotionEvent::actionToString(action).c_str(), actionButton, flags, edgeFlags,
diff --git a/libs/input/android/os/InputConfig.aidl b/libs/input/android/os/InputConfig.aidl
index 4e644ff..5d39155 100644
--- a/libs/input/android/os/InputConfig.aidl
+++ b/libs/input/android/os/InputConfig.aidl
@@ -150,4 +150,11 @@
      * likely a duplicate window with the same client token, but different bounds.
      */
     CLONE                        = 1 << 16,
+
+    /**
+     * If the stylus is currently down *anywhere* on the screen, new touches will not be delivered
+     * to the window with this flag. This helps prevent unexpected clicks on some system windows,
+     * like StatusBar and TaskBar.
+     */
+    GLOBAL_STYLUS_BLOCKS_TOUCH   = 1 << 17,
 }
diff --git a/services/inputflinger/dispatcher/InputDispatcher.cpp b/services/inputflinger/dispatcher/InputDispatcher.cpp
index d6ff4b5..8d0ff4b 100644
--- a/services/inputflinger/dispatcher/InputDispatcher.cpp
+++ b/services/inputflinger/dispatcher/InputDispatcher.cpp
@@ -749,6 +749,20 @@
     return true;
 }
 
+/**
+ * Return true if stylus is currently down anywhere on the specified display, and false otherwise.
+ */
+bool isStylusActiveInDisplay(
+        int32_t displayId,
+        const std::unordered_map<int32_t /*displayId*/, TouchState>& touchStatesByDisplay) {
+    const auto it = touchStatesByDisplay.find(displayId);
+    if (it == touchStatesByDisplay.end()) {
+        return false;
+    }
+    const TouchState& state = it->second;
+    return state.hasActiveStylus();
+}
+
 } // namespace
 
 // --- InputDispatcher ---
@@ -5051,6 +5065,13 @@
         return false;
     }
 
+    // Ignore touches if stylus is down anywhere on screen
+    if (info.inputConfig.test(WindowInfo::InputConfig::GLOBAL_STYLUS_BLOCKS_TOUCH) &&
+        isStylusActiveInDisplay(info.displayId, mTouchStatesByDisplay)) {
+        LOG(INFO) << "Dropping touch from " << window->getName() << " because stylus is active";
+        return false;
+    }
+
     return true;
 }
 
diff --git a/services/inputflinger/dispatcher/TouchState.cpp b/services/inputflinger/dispatcher/TouchState.cpp
index cc7616a..f8aa625 100644
--- a/services/inputflinger/dispatcher/TouchState.cpp
+++ b/services/inputflinger/dispatcher/TouchState.cpp
@@ -234,6 +234,11 @@
     });
 }
 
+bool TouchState::hasActiveStylus() const {
+    return std::any_of(windows.begin(), windows.end(),
+                       [](const TouchedWindow& window) { return window.hasActiveStylus(); });
+}
+
 std::set<sp<WindowInfoHandle>> TouchState::getWindowsWithHoveringPointer(DeviceId deviceId,
                                                                          int32_t pointerId) const {
     std::set<sp<WindowInfoHandle>> out;
diff --git a/services/inputflinger/dispatcher/TouchState.h b/services/inputflinger/dispatcher/TouchState.h
index 932c3fb..3d534bc 100644
--- a/services/inputflinger/dispatcher/TouchState.h
+++ b/services/inputflinger/dispatcher/TouchState.h
@@ -73,6 +73,8 @@
     bool isDown(DeviceId deviceId) const;
     bool hasHoveringPointers(DeviceId deviceId) const;
 
+    bool hasActiveStylus() const;
+
     std::set<sp<android::gui::WindowInfoHandle>> getWindowsWithHoveringPointer(
             DeviceId deviceId, int32_t pointerId) const;
     std::string dump() const;
diff --git a/services/inputflinger/dispatcher/TouchedWindow.cpp b/services/inputflinger/dispatcher/TouchedWindow.cpp
index 5914808..037d7c8 100644
--- a/services/inputflinger/dispatcher/TouchedWindow.cpp
+++ b/services/inputflinger/dispatcher/TouchedWindow.cpp
@@ -162,6 +162,22 @@
     }
 }
 
+bool TouchedWindow::hasActiveStylus() const {
+    for (const auto& [_, state] : mDeviceStates) {
+        for (const PointerProperties& properties : state.touchingPointers) {
+            if (properties.toolType == ToolType::STYLUS) {
+                return true;
+            }
+        }
+        for (const PointerProperties& properties : state.hoveringPointers) {
+            if (properties.toolType == ToolType::STYLUS) {
+                return true;
+            }
+        }
+    }
+    return false;
+}
+
 std::set<DeviceId> TouchedWindow::getTouchingDeviceIds() const {
     std::set<DeviceId> deviceIds;
     for (const auto& [deviceId, deviceState] : mDeviceStates) {
diff --git a/services/inputflinger/dispatcher/TouchedWindow.h b/services/inputflinger/dispatcher/TouchedWindow.h
index 2e68d3e..0d1531f 100644
--- a/services/inputflinger/dispatcher/TouchedWindow.h
+++ b/services/inputflinger/dispatcher/TouchedWindow.h
@@ -49,6 +49,7 @@
     void addTouchingPointers(DeviceId deviceId, const std::vector<PointerProperties>& pointers);
     void removeTouchingPointer(DeviceId deviceId, int32_t pointerId);
     void removeTouchingPointers(DeviceId deviceId, std::bitset<MAX_POINTER_ID + 1> pointers);
+    bool hasActiveStylus() const;
     std::set<DeviceId> getTouchingDeviceIds() const;
 
     // Pilfering pointers
diff --git a/services/inputflinger/tests/InputDispatcher_test.cpp b/services/inputflinger/tests/InputDispatcher_test.cpp
index 9eb322e..ef07540 100644
--- a/services/inputflinger/tests/InputDispatcher_test.cpp
+++ b/services/inputflinger/tests/InputDispatcher_test.cpp
@@ -1184,6 +1184,11 @@
         mInfo.setInputConfig(WindowInfo::InputConfig::DISABLE_USER_ACTIVITY, disableUserActivity);
     }
 
+    void setGlobalStylusBlocksTouch(bool shouldGlobalStylusBlockTouch) {
+        mInfo.setInputConfig(WindowInfo::InputConfig::GLOBAL_STYLUS_BLOCKS_TOUCH,
+                             shouldGlobalStylusBlockTouch);
+    }
+
     void setAlpha(float alpha) { mInfo.alpha = alpha; }
 
     void setTouchOcclusionMode(TouchOcclusionMode mode) { mInfo.touchOcclusionMode = mode; }
@@ -3341,6 +3346,150 @@
 }
 
 /**
+ * If stylus is down anywhere on the screen, then touches should not be delivered to windows that
+ * have InputConfig::GLOBAL_STYLUS_BLOCKS_TOUCH.
+ *
+ * Two windows: one on the left and one on the right.
+ * The window on the right has GLOBAL_STYLUS_BLOCKS_TOUCH config.
+ * Stylus down on the left window, and then touch down on the right window.
+ * Check that the right window doesn't get touches while the stylus is down on the left window.
+ */
+TEST_F(InputDispatcherMultiDeviceTest, GlobalStylusDownBlocksTouch) {
+    std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();
+    sp<FakeWindowHandle> leftWindow =
+            sp<FakeWindowHandle>::make(application, mDispatcher, "Left window",
+                                       ADISPLAY_ID_DEFAULT);
+    leftWindow->setFrame(Rect(0, 0, 100, 100));
+
+    sp<FakeWindowHandle> sbtRightWindow =
+            sp<FakeWindowHandle>::make(application, mDispatcher,
+                                       "Stylus blocks touch (right) window", ADISPLAY_ID_DEFAULT);
+    sbtRightWindow->setFrame(Rect(100, 100, 200, 200));
+    sbtRightWindow->setGlobalStylusBlocksTouch(true);
+
+    mDispatcher->onWindowInfosChanged(
+            {{*leftWindow->getInfo(), *sbtRightWindow->getInfo()}, {}, 0, 0});
+
+    const int32_t stylusDeviceId = 5;
+    const int32_t touchDeviceId = 4;
+
+    // Stylus down in the left window
+    mDispatcher->notifyMotion(MotionArgsBuilder(ACTION_DOWN, AINPUT_SOURCE_STYLUS)
+                                      .pointer(PointerBuilder(0, ToolType::STYLUS).x(50).y(52))
+                                      .deviceId(stylusDeviceId)
+                                      .build());
+    leftWindow->consumeMotionEvent(
+            AllOf(WithMotionAction(ACTION_DOWN), WithDeviceId(stylusDeviceId)));
+
+    // Finger tap on the right window
+    mDispatcher->notifyMotion(MotionArgsBuilder(ACTION_DOWN, AINPUT_SOURCE_TOUCHSCREEN)
+                                      .pointer(PointerBuilder(0, ToolType::FINGER).x(150).y(151))
+                                      .deviceId(touchDeviceId)
+                                      .build());
+    mDispatcher->notifyMotion(MotionArgsBuilder(ACTION_UP, AINPUT_SOURCE_TOUCHSCREEN)
+                                      .pointer(PointerBuilder(0, ToolType::FINGER).x(150).y(151))
+                                      .deviceId(touchDeviceId)
+                                      .build());
+
+    // The touch should be blocked, because stylus is down somewhere else on screen!
+    sbtRightWindow->assertNoEvents();
+
+    // Continue stylus motion, and ensure it's not impacted.
+    mDispatcher->notifyMotion(MotionArgsBuilder(ACTION_MOVE, AINPUT_SOURCE_STYLUS)
+                                      .pointer(PointerBuilder(0, ToolType::STYLUS).x(51).y(53))
+                                      .deviceId(stylusDeviceId)
+                                      .build());
+    mDispatcher->notifyMotion(MotionArgsBuilder(ACTION_UP, AINPUT_SOURCE_STYLUS)
+                                      .pointer(PointerBuilder(0, ToolType::STYLUS).x(51).y(53))
+                                      .deviceId(stylusDeviceId)
+                                      .build());
+    leftWindow->consumeMotionEvent(
+            AllOf(WithMotionAction(ACTION_MOVE), WithDeviceId(stylusDeviceId)));
+    leftWindow->consumeMotionEvent(
+            AllOf(WithMotionAction(ACTION_UP), WithDeviceId(stylusDeviceId)));
+
+    // Now that the stylus gesture is done, touches should be getting delivered correctly.
+    mDispatcher->notifyMotion(MotionArgsBuilder(ACTION_DOWN, AINPUT_SOURCE_TOUCHSCREEN)
+                                      .pointer(PointerBuilder(0, ToolType::FINGER).x(151).y(153))
+                                      .deviceId(touchDeviceId)
+                                      .build());
+    sbtRightWindow->consumeMotionEvent(
+            AllOf(WithMotionAction(ACTION_DOWN), WithDeviceId(touchDeviceId)));
+}
+
+/**
+ * If stylus is hovering anywhere on the screen, then touches should not be delivered to windows
+ * that have InputConfig::GLOBAL_STYLUS_BLOCKS_TOUCH.
+ *
+ * Two windows: one on the left and one on the right.
+ * The window on the right has GLOBAL_STYLUS_BLOCKS_TOUCH config.
+ * Stylus hover on the left window, and then touch down on the right window.
+ * Check that the right window doesn't get touches while the stylus is hovering on the left window.
+ */
+TEST_F(InputDispatcherMultiDeviceTest, GlobalStylusHoverBlocksTouch) {
+    std::shared_ptr<FakeApplicationHandle> application = std::make_shared<FakeApplicationHandle>();
+    sp<FakeWindowHandle> leftWindow =
+            sp<FakeWindowHandle>::make(application, mDispatcher, "Left window",
+                                       ADISPLAY_ID_DEFAULT);
+    leftWindow->setFrame(Rect(0, 0, 100, 100));
+
+    sp<FakeWindowHandle> sbtRightWindow =
+            sp<FakeWindowHandle>::make(application, mDispatcher,
+                                       "Stylus blocks touch (right) window", ADISPLAY_ID_DEFAULT);
+    sbtRightWindow->setFrame(Rect(100, 100, 200, 200));
+    sbtRightWindow->setGlobalStylusBlocksTouch(true);
+
+    mDispatcher->onWindowInfosChanged(
+            {{*leftWindow->getInfo(), *sbtRightWindow->getInfo()}, {}, 0, 0});
+
+    const int32_t stylusDeviceId = 5;
+    const int32_t touchDeviceId = 4;
+
+    // Stylus hover in the left window
+    mDispatcher->notifyMotion(MotionArgsBuilder(ACTION_HOVER_ENTER, AINPUT_SOURCE_STYLUS)
+                                      .pointer(PointerBuilder(0, ToolType::STYLUS).x(50).y(52))
+                                      .deviceId(stylusDeviceId)
+                                      .build());
+    leftWindow->consumeMotionEvent(
+            AllOf(WithMotionAction(ACTION_HOVER_ENTER), WithDeviceId(stylusDeviceId)));
+
+    // Finger tap on the right window
+    mDispatcher->notifyMotion(MotionArgsBuilder(ACTION_DOWN, AINPUT_SOURCE_TOUCHSCREEN)
+                                      .pointer(PointerBuilder(0, ToolType::FINGER).x(150).y(151))
+                                      .deviceId(touchDeviceId)
+                                      .build());
+    mDispatcher->notifyMotion(MotionArgsBuilder(ACTION_UP, AINPUT_SOURCE_TOUCHSCREEN)
+                                      .pointer(PointerBuilder(0, ToolType::FINGER).x(150).y(151))
+                                      .deviceId(touchDeviceId)
+                                      .build());
+
+    // The touch should be blocked, because stylus is hovering somewhere else on screen!
+    sbtRightWindow->assertNoEvents();
+
+    // Continue stylus motion, and ensure it's not impacted.
+    mDispatcher->notifyMotion(MotionArgsBuilder(ACTION_HOVER_MOVE, AINPUT_SOURCE_STYLUS)
+                                      .pointer(PointerBuilder(0, ToolType::STYLUS).x(51).y(53))
+                                      .deviceId(stylusDeviceId)
+                                      .build());
+    mDispatcher->notifyMotion(MotionArgsBuilder(ACTION_HOVER_EXIT, AINPUT_SOURCE_STYLUS)
+                                      .pointer(PointerBuilder(0, ToolType::STYLUS).x(51).y(53))
+                                      .deviceId(stylusDeviceId)
+                                      .build());
+    leftWindow->consumeMotionEvent(
+            AllOf(WithMotionAction(ACTION_HOVER_MOVE), WithDeviceId(stylusDeviceId)));
+    leftWindow->consumeMotionEvent(
+            AllOf(WithMotionAction(ACTION_HOVER_EXIT), WithDeviceId(stylusDeviceId)));
+
+    // Now that the stylus gesture is done, touches should be getting delivered correctly.
+    mDispatcher->notifyMotion(MotionArgsBuilder(ACTION_DOWN, AINPUT_SOURCE_TOUCHSCREEN)
+                                      .pointer(PointerBuilder(0, ToolType::FINGER).x(151).y(153))
+                                      .deviceId(touchDeviceId)
+                                      .build());
+    sbtRightWindow->consumeMotionEvent(
+            AllOf(WithMotionAction(ACTION_DOWN), WithDeviceId(touchDeviceId)));
+}
+
+/**
  * A spy window above a window with no input channel.
  * Start hovering with a stylus device, and then tap with it.
  * Ensure spy window receives the entire sequence.