From: John Keeping <john@metanate.com>
Date: Mon, 19 Sep 2016 09:59:40 +0000 (+0100)
Subject: fastboot: avoid printing invalid data
X-Git-Url: http://git.dujemihanovic.xyz/login.html?a=commitdiff_plain;h=7715dea48b5d17f6394d1a02c60a84278df71391;p=u-boot.git

fastboot: avoid printing invalid data

There is no guarantee that commands are null-terminated in the USB
request buffer, so limit the length of data that is printed.

Signed-off-by: John Keeping <john@metanate.com>
Tested-by: Steve Rae <steve.rae@raedomain.com>
---

diff --git a/drivers/usb/gadget/f_fastboot.c b/drivers/usb/gadget/f_fastboot.c
index aecee7ff38..199621d9f5 100644
--- a/drivers/usb/gadget/f_fastboot.c
+++ b/drivers/usb/gadget/f_fastboot.c
@@ -718,7 +718,7 @@ static void rx_handler_command(struct usb_ep *ep, struct usb_request *req)
 	}
 
 	if (!func_cb) {
-		error("unknown command: %s", cmdbuf);
+		error("unknown command: %.*s", req->actual, cmdbuf);
 		fastboot_tx_write_str("FAILunknown command");
 	} else {
 		if (req->actual < req->length) {