patch "USB: serial: garmin_gps: add sanity checking for data length" added to usb-linus

This is a note to let you know that I've just added the patch titled

USB: serial: garmin_gps: add sanity checking for data length

to my usb git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git
in the usb-linus branch.

The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)

The patch will hopefully also be merged in Linus's tree for the next -rc kernel release.

If you have any questions about this process, please let me know.

From e9b3c610a05c1cdf8e959a6d89c38807ff758ee6 Mon Sep 17 00:00:00 2001
From: Oliver Neukum <[email protected]>
Date: Wed, 15 Apr 2020 16:03:04 +0200
Subject: USB: serial: garmin_gps: add sanity checking for data length

We must not process packets shorter than a packet ID

---
 drivers/usb/serial/garmin_gps.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

index ffd984142171..d63072fee099 100644
@@ -1138,8 +1138,8 @@ static void garmin_read_process(struct garmin_data *garmin_data_p,
 		   send it directly to the tty port */
 		if (garmin_data_p->flags & FLAGS_QUEUING) {
 			pkt_add(garmin_data_p, data, data_length);
-		} else if (bulk_data ||
-			   getLayerId(data) == GARMIN_LAYERID_APPL) {
+		} else if (bulk_data || (data_length >= sizeof(u32) &&
+				getLayerId(data) == GARMIN_LAYERID_APPL)) {
 
 			spin_lock_irqsave(&garmin_data_p->lock, flags);
 			garmin_data_p->flags |= APP_RESP_SEEN;

2.26.2