diff --git a/drivers/usb/gadget/function/f_cdev.c b/drivers/usb/gadget/function/f_cdev.c
index 8f9cd43ad535..ba6816d8398e 100644
--- a/drivers/usb/gadget/function/f_cdev.c
+++ b/drivers/usb/gadget/function/f_cdev.c
@@ -867,6 +867,9 @@ static void usb_cser_unbind(struct usb_configuration *c, struct usb_function *f)
 {
 	struct f_cdev *port = func_to_port(f);
 
+	/* Reset string id */
+	cser_string_defs[0].id = 0;
+
 	usb_free_all_descriptors(f);
 	usb_cser_free_req(port->port_usb.notify, port->port_usb.notify_req);
 }
diff --git a/drivers/usb/gadget/function/f_gsi.c b/drivers/usb/gadget/function/f_gsi.c
index c9dced233469..f6be9b01c6db 100644
--- a/drivers/usb/gadget/function/f_gsi.c
+++ b/drivers/usb/gadget/function/f_gsi.c
@@ -3094,6 +3094,13 @@ static void gsi_unbind(struct usb_configuration *c, struct usb_function *f)
 
 	ipa_usb_deinit_teth_prot(gsi->prot_id);
 
+	/* Reset string ids */
+	rndis_gsi_string_defs[0].id = 0;
+	ecm_gsi_string_defs[0].id   = 0;
+	rmnet_gsi_string_defs[0].id = 0;
+	mbim_gsi_string_defs[0].id  = 0;
+	qdss_gsi_string_defs[0].id  = 0;
+
 	if (gsi->prot_id == IPA_USB_RNDIS) {
 		gsi->d_port.sm_state = STATE_UNINITIALIZED;
 		rndis_deregister(gsi->params);