diff --git a/repos/os/src/drivers/platform/session_component.cc b/repos/os/src/drivers/platform/session_component.cc
index 081ab14ed1..68168094fe 100644
--- a/repos/os/src/drivers/platform/session_component.cc
+++ b/repos/os/src/drivers/platform/session_component.cc
@@ -176,6 +176,19 @@ Session_component::alloc_dma_buffer(size_t const size, Cache cache)
 {
 	Ram_dataspace_capability ram_cap { };
 
+	/*
+	 * Check available quota beforehand and reflect the state back
+	 * to the client because the 'Expanding_pd_session_client' will
+	 * ask its parent otherwise.
+	 */
+	enum { WATERMARK_CAP_QUOTA = 8, };
+	if (_env.pd().avail_caps().value < WATERMARK_CAP_QUOTA)
+		throw Out_of_caps();
+
+	enum { WATERMARK_RAM_QUOTA = 4096, };
+	if (_env.pd().avail_ram().value < WATERMARK_RAM_QUOTA)
+		throw Out_of_ram();
+
 	try {
 		ram_cap = _env_ram.alloc(size, cache);
 	} catch (Ram_allocator::Denied) { }