From d495c1baa1b3ba277bb5ae24adeab0600151cba4 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Tue, 29 Oct 2013 09:06:54 +0100 Subject: uas: Fix bounds check in uas_find_endpoints The loop uses up to 3 bytes of the endpoint extra data. Signed-off-by: Hans de Goede Signed-off-by: Sarah Sharp --- drivers/usb/storage/uas.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/usb/storage') diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c index 1ac66f290fbf..7662b3e13c4d 100644 --- a/drivers/usb/storage/uas.c +++ b/drivers/usb/storage/uas.c @@ -907,7 +907,7 @@ static int uas_find_endpoints(struct usb_host_interface *alt, for (i = 0; i < n_endpoints; i++) { unsigned char *extra = endpoint[i].extra; int len = endpoint[i].extralen; - while (len > 1) { + while (len >= 3) { if (extra[1] == USB_DT_PIPE_USAGE) { unsigned pipe_id = extra[2]; if (pipe_id > 0 && pipe_id < 5) -- cgit v1.2.3