This is a note to let you know that I've just added the patch titled USB: visor: fix null-deref at probe to the 4.3-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-visor-fix-null-deref-at-probe.patch and it can be found in the queue-4.3 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From cac9b50b0d75a1d50d6c056ff65c005f3224c8e0 Mon Sep 17 00:00:00 2001 From: Johan Hovold <johan@xxxxxxxxxx> Date: Tue, 12 Jan 2016 12:05:20 +0100 Subject: USB: visor: fix null-deref at probe From: Johan Hovold <johan@xxxxxxxxxx> commit cac9b50b0d75a1d50d6c056ff65c005f3224c8e0 upstream. Fix null-pointer dereference at probe should a (malicious) Treo device lack the expected endpoints. Specifically, the Treo port-setup hack was dereferencing the bulk-in and interrupt-in urbs without first making sure they had been allocated by core. 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/visor.c | 5 +++++ 1 file changed, 5 insertions(+) --- a/drivers/usb/serial/visor.c +++ b/drivers/usb/serial/visor.c @@ -544,6 +544,11 @@ static int treo_attach(struct usb_serial (serial->num_interrupt_in == 0)) return 0; + if (serial->num_bulk_in < 2 || serial->num_interrupt_in < 2) { + dev_err(&serial->interface->dev, "missing endpoints\n"); + return -ENODEV; + } + /* * It appears that Treos and Kyoceras want to use the * 1st bulk in endpoint to communicate with the 2nd bulk out endpoint, Patches currently in stable-queue which might be from johan@xxxxxxxxxx are queue-4.3/usb-serial-ftdi_sio-add-support-for-yaesu-scu-18-cable.patch queue-4.3/spi-fix-parent-device-reference-leak.patch queue-4.3/usb-visor-fix-null-deref-at-probe.patch queue-4.3/usb-serial-visor-fix-crash-on-detecting-device-without-write_urbs.patch queue-4.3/usb-cp210x-add-id-for-iai-usb-to-rs485-adaptor.patch queue-4.3/usb-serial-option-adding-support-for-telit-le922.patch queue-4.3/usb-option-fix-cinterion-ahxx-enumeration.patch -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html