diff --git a/matrix/matrix-iOS/Matrix/WCCrashBlockMonitor/CrashBlockPlugin/Main/BlockMonitor/Handler/WCGetMainThreadUtil.mm b/matrix/matrix-iOS/Matrix/WCCrashBlockMonitor/CrashBlockPlugin/Main/BlockMonitor/Handler/WCGetMainThreadUtil.mm
index a83dd877d..c29d59f8b 100644
--- a/matrix/matrix-iOS/Matrix/WCCrashBlockMonitor/CrashBlockPlugin/Main/BlockMonitor/Handler/WCGetMainThreadUtil.mm
+++ b/matrix/matrix-iOS/Matrix/WCCrashBlockMonitor/CrashBlockPlugin/Main/BlockMonitor/Handler/WCGetMainThreadUtil.mm
@@ -52,10 +52,12 @@ + (int)getCurrentMainThreadStack:(void (^)(NSUInteger pc))saveResultBlock
 
     KSThread currentThread = ksthread_self();
     if (mainThread == currentThread) {
+        vm_deallocate(mach_task_self(), (vm_address_t)threads, sizeof(thread_t) * thread_count);
         return 0;
     }
 
     if (thread_suspend(mainThread) != KERN_SUCCESS) {
+        vm_deallocate(mach_task_self(), (vm_address_t)threads, sizeof(thread_t) * thread_count);
         return 0;
     }
 
diff --git a/matrix/matrix-iOS/Matrix/WCCrashBlockMonitor/CrashBlockPlugin/Main/BlockMonitor/Handler/WCPowerConsumeStackCollector.mm b/matrix/matrix-iOS/Matrix/WCCrashBlockMonitor/CrashBlockPlugin/Main/BlockMonitor/Handler/WCPowerConsumeStackCollector.mm
index a196d1469..c9daa56fb 100644
--- a/matrix/matrix-iOS/Matrix/WCCrashBlockMonitor/CrashBlockPlugin/Main/BlockMonitor/Handler/WCPowerConsumeStackCollector.mm
+++ b/matrix/matrix-iOS/Matrix/WCCrashBlockMonitor/CrashBlockPlugin/Main/BlockMonitor/Handler/WCPowerConsumeStackCollector.mm
@@ -613,6 +613,7 @@ + (float)getCurrentCPUUsage {
         mach_msg_type_number_t thread_info_count = THREAD_INFO_MAX;
         kr = thread_info(thread_list[j], THREAD_BASIC_INFO, (thread_info_t)thinfo, &thread_info_count);
         if (kr != KERN_SUCCESS) {
+            vm_deallocate(mach_task_self(), (vm_offset_t)thread_list, thread_count * sizeof(thread_t));
             return -1;
         }
         thread_basic_info_t basic_info_th = (thread_basic_info_t)thinfo;
@@ -661,6 +662,7 @@ - (float)getTotCpuWithCostCpuThreadArray:(NSMutableArray<WCCpuStackFrame *> **)c
         mach_msg_type_number_t thread_info_count = THREAD_INFO_MAX;
         kr = thread_info(current_thread, THREAD_BASIC_INFO, (thread_info_t)thinfo, &thread_info_count);
         if (kr != KERN_SUCCESS) {
+            vm_deallocate(mach_task_self(), (vm_offset_t)thread_list, *thread_count * sizeof(thread_t));
             return -1;
         }