This is a note to let you know that I've just added the patch titled
USB: serial: io_edgeport: fix NULL-deref at open
to the 4.4-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-io_edgeport-fix-null-deref-at-open.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 0dd408425eb21ddf26a692b3c8044c9e7d1a7948 Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan@xxxxxxxxxx>
Date: Tue, 3 Jan 2017 16:39:42 +0100
Subject: USB: serial: io_edgeport: fix NULL-deref at open
From: Johan Hovold <johan@xxxxxxxxxx>
commit 0dd408425eb21ddf26a692b3c8044c9e7d1a7948 upstream.
Fix NULL-pointer dereference when initialising URBs at open should a
non-EPIC device lack a bulk-in or interrupt-in endpoint.
Unable to handle kernel NULL pointer dereference at virtual address 00000028
...
PC is at edge_open+0x24c/0x3e8 [io_edgeport]
Note that the EPIC-device probe path has the required sanity checks so
this makes those checks partially redundant.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/serial/io_edgeport.c | 5 +++++
1 file changed, 5 insertions(+)
--- a/drivers/usb/serial/io_edgeport.c
+++ b/drivers/usb/serial/io_edgeport.c
@@ -2761,6 +2761,11 @@ static int edge_startup(struct usb_seria
EDGE_COMPATIBILITY_MASK1,
EDGE_COMPATIBILITY_MASK2 };
+ if (serial->num_bulk_in < 1 || serial->num_interrupt_in < 1) {
+ dev_err(&serial->interface->dev, "missing endpoints\n");
+ return -ENODEV;
+ }
+
dev = serial->dev;
/* create our private serial structure */
Patches currently in stable-queue which might be from johan@xxxxxxxxxx are
queue-4.4/usb-serial-io_ti-fix-i-o-after-disconnect.patch
queue-4.4/usb-serial-ti_usb_3410_5052-fix-null-deref-at-open.patch
queue-4.4/usb-serial-kobil_sct-fix-null-deref-in-write.patch
queue-4.4/usb-serial-spcp8x5-fix-null-deref-at-open.patch
queue-4.4/usb-serial-mos7720-fix-parallel-probe.patch
queue-4.4/usb-serial-cyberjack-fix-null-deref-at-open.patch
queue-4.4/usb-serial-mos7720-fix-null-deref-at-open.patch
queue-4.4/usb-serial-garmin_gps-fix-memory-leak-on-failed-urb-submit.patch
queue-4.4/usb-serial-io_ti-fix-null-deref-at-open.patch
queue-4.4/usb-serial-pl2303-fix-null-deref-at-open.patch
queue-4.4/usb-serial-quatech2-fix-sleep-while-atomic-in-close.patch
queue-4.4/usb-serial-iuu_phoenix-fix-null-deref-at-open.patch
queue-4.4/usb-serial-oti6858-fix-null-deref-at-open.patch
queue-4.4/usb-serial-io_edgeport-fix-null-deref-at-open.patch
queue-4.4/usb-serial-mos7720-fix-parport-use-after-free-on-probe-errors.patch
queue-4.4/usb-serial-mos7720-fix-use-after-free-on-probe-errors.patch
queue-4.4/usb-serial-mos7840-fix-null-deref-at-open.patch
queue-4.4/usb-serial-omninet-fix-null-derefs-at-open-and-disconnect.patch
queue-4.4/usb-serial-keyspan_pda-verify-endpoints-at-probe.patch
queue-4.4/usb-serial-io_ti-fix-another-null-deref-at-open.patch
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