patches/kernel/0262-uvcvideo-prevent-speculative-execution.patch

   1 From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
   2 From: Elena Reshetova <elena.reshetova@intel.com>
   3 Date: Mon, 4 Sep 2017 13:11:46 +0300
   4 Subject: [PATCH] uvcvideo: prevent speculative execution
   5 MIME-Version: 1.0
   6 Content-Type: text/plain; charset=UTF-8
   7 Content-Transfer-Encoding: 8bit
   8
   9 CVE-2017-5753
  10 CVE-2017-5715
  11
  12 real commit text tbd
  13
  14 Signed-off-by: Elena Reshetova <elena.reshetova@intel.com>
  15 Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
  16 Signed-off-by: Andy Whitcroft <apw@canonical.com>
  17 Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>
  18 (cherry picked from commit 65d4588b16395360695525add0ca79fa6ba04fa5)
  19 Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
  20 ---
  21  drivers/media/usb/uvc/uvc_v4l2.c | 1 +
  22  1 file changed, 1 insertion(+)
  23
  24 diff --git a/drivers/media/usb/uvc/uvc_v4l2.c b/drivers/media/usb/uvc/uvc_v4l2.c
  25 index 3e7e283a44a8..fcedd1798e9d 100644
  26 --- a/drivers/media/usb/uvc/uvc_v4l2.c
  27 +++ b/drivers/media/usb/uvc/uvc_v4l2.c
  28 @@ -821,6 +821,7 @@ static int uvc_ioctl_enum_input(struct file *file, void *fh,
  29                 }
  30                 pin = iterm->id;
  31         } else if (index < selector->bNrInPins) {
  32 +               gmb();
  33                 pin = selector->baSourceID[index];
  34                 list_for_each_entry(iterm, &chain->entities, chain) {
  35                         if (!UVC_ENTITY_IS_ITERM(iterm))
  36 --
  37 2.14.2
  38