diff --git a/Kernel/Process.cpp b/Kernel/Process.cpp
index 0dfe18e52b6..f870d738ef3 100644
--- a/Kernel/Process.cpp
+++ b/Kernel/Process.cpp
@@ -707,6 +707,7 @@ void Process::terminate_due_to_signal(u8 signal)
 
 ErrorOr<void> Process::send_signal(u8 signal, Process* sender)
 {
+    VERIFY(is_user_process());
     // Try to send it to the "obvious" main thread:
     auto receiver_thread = Thread::from_tid(pid().value());
     // If the main thread has died, there may still be other threads:
diff --git a/Kernel/Thread.cpp b/Kernel/Thread.cpp
index f7764b85eeb..6f5e6338d36 100644
--- a/Kernel/Thread.cpp
+++ b/Kernel/Thread.cpp
@@ -721,6 +721,7 @@ u32 Thread::pending_signals_for_state() const
 void Thread::send_signal(u8 signal, [[maybe_unused]] Process* sender)
 {
     VERIFY(signal < 32);
+    VERIFY(process().is_user_process());
     SpinlockLocker scheduler_lock(g_scheduler_lock);
 
     // FIXME: Figure out what to do for masked signals. Should we also ignore them here?