diff --git a/src/add-ons/kernel/file_systems/userlandfs/kernel_add_on/Volume.cpp b/src/add-ons/kernel/file_systems/userlandfs/kernel_add_on/Volume.cpp
index 21b9a76b3b..62529fd272 100644
--- a/src/add-ons/kernel/file_systems/userlandfs/kernel_add_on/Volume.cpp
+++ b/src/add-ons/kernel/file_systems/userlandfs/kernel_add_on/Volume.cpp
@@ -2882,8 +2882,10 @@ Volume::ReadAttr(void* _node, void* cookie, off_t pos,
 		|| reply->bytesRead > bufferSize) {
 		return B_BAD_DATA;
 	}
-	if (reply->bytesRead > 0)
-		memcpy(buffer, readBuffer, reply->bytesRead);
+	if (reply->bytesRead > 0
+		&& user_memcpy(buffer, readBuffer, reply->bytesRead) < B_OK) {
+		return B_BAD_ADDRESS;
+	}
 	*bytesRead = reply->bytesRead;
 	_SendReceiptAck(port);
 	return error;