Patch "USB: serial: digi_acceleport: fix OOB-event processing" has been added to the 4.9-stable tree

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

USB: serial: digi_acceleport: fix OOB-event processing

to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
usb-serial-digi_acceleport-fix-oob-event-processing.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Johan Hovold <[email protected]>
Date: Fri, 24 Feb 2017 19:11:28 +0100
Subject: USB: serial: digi_acceleport: fix OOB-event processing

From: Johan Hovold <[email protected]>

commit 2e46565cf622dd0534a9d8bffe152a577b48d7aa upstream.

A recent change claimed to fix an off-by-one error in the OOB-port completion handler, but instead introduced such an error. This could specifically led to modem-status changes going unnoticed, effectively breaking TIOCMGET.

Note that the offending commit fixes a loop-condition underflow and is marked for stable, but should not be backported without this fix.

check")

---
 drivers/usb/serial/digi_acceleport.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

@@ -1491,7 +1491,7 @@ static int digi_read_oob_callback(struct
 		return -1;
 
 	/* handle each oob command */
-	for (i = 0; i < urb->actual_length - 4; i += 4) {
+	for (i = 0; i < urb->actual_length - 3; i += 4) {
 		opcode = buf[i];
 		line = buf[i + 1];
 		status = buf[i + 2];

Patches currently in stable-queue which might be from [email protected] are

queue-4.9/usb-serial-digi_acceleport-fix-oob-event-processing.patch queue-4.9/usb-serial-digi_acceleport-fix-oob-data-sanity-check.patch