Index: uspace/drv/bus/usb/xhci/commands.c
===================================================================
--- uspace/drv/bus/usb/xhci/commands.c	(revision eff60ca25b50ac6ae6a5a2689db949732c7c26c8)
+++ uspace/drv/bus/usb/xhci/commands.c	(revision 60f7c590bbc1ec04360ad92a8caca24d962ef986)
@@ -450,4 +450,5 @@
 	if (!command->has_owner) {
 		usb_log_debug2("Command has no owner, deallocating.");
+		command->trb = NULL; // It was statically allocated.
 		xhci_free_command(command);
 	} else {