diff --git a/camera/camera_platform.aconfig b/camera/camera_platform.aconfig
index 968b28f..2feebb4 100644
--- a/camera/camera_platform.aconfig
+++ b/camera/camera_platform.aconfig
@@ -246,3 +246,13 @@
         purpose: PURPOSE_FEATURE
     }
 }
+
+flag {
+    namespace: "camera_platform"
+    name: "query_process_state"
+    description: "In opChanged, query the process state from AM instead of relying on mUidPolicy"
+    bug: "378016494"
+    metadata {
+        purpose: PURPOSE_BUGFIX
+    }
+}
diff --git a/services/camera/libcameraservice/CameraService.cpp b/services/camera/libcameraservice/CameraService.cpp
index 20b78b7..df94478 100644
--- a/services/camera/libcameraservice/CameraService.cpp
+++ b/services/camera/libcameraservice/CameraService.cpp
@@ -4550,6 +4550,17 @@
     return OK;
 }
 
+int32_t CameraService::getUidProcessState(int32_t uid) {
+    const auto& activityManager = getActivityManager();
+    int32_t procState = ActivityManager::PROCESS_STATE_NONEXISTENT;
+    if (activityManager != nullptr) {
+        procState = activityManager->getUidProcessState(uid, toString16(kServiceName));
+    } else {
+        ALOGE("%s: getActivityManager returned nullptr.", __FUNCTION__);
+    }
+    return procState;
+}
+
 void CameraService::BasicClient::opChanged(int32_t op, const String16&) {
     ATRACE_CALL();
     if (mAppOpsManager == nullptr) {
@@ -4606,12 +4617,9 @@
                       [&](const auto& attr) {
                           uid = static_cast<uid_t>(attr.uid);
                       });
-            const auto& activityManager = getActivityManager();
-            if (activityManager != nullptr) {
-                procState = activityManager->getUidProcessState(uid, toString16(kServiceName));
-            } else {
-                ALOGD("%s: getActivityManager returned nullptr.", __FUNCTION__);
-            }
+            procState = getUidProcessState(uid);
+        } else if (flags::query_process_state()) {
+            procState = getUidProcessState(getClientUid());
         } else {
             procState = sCameraService->mUidPolicy->getProcState(getClientUid());
         }
diff --git a/services/camera/libcameraservice/CameraService.h b/services/camera/libcameraservice/CameraService.h
index 7e82401..9c75ede 100644
--- a/services/camera/libcameraservice/CameraService.h
+++ b/services/camera/libcameraservice/CameraService.h
@@ -691,6 +691,8 @@
         return activityManager;
     }
 
+    static int32_t getUidProcessState(int32_t uid);
+
     /**
      * Typesafe version of device status, containing both the HAL-layer and the service interface-
      * layer values.