HID: ntrig: validate feature report details
authorKees Cook <keescook@chromium.org>
Wed, 28 Aug 2013 20:31:28 +0000 (22:31 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 27 Sep 2013 00:18:16 +0000 (17:18 -0700)
commit7c91362f8c00c6fb75da374c749a024d6d3563fb
tree6b58abea1fce003104c73f9378c44c5df9840954
parent0697d8057661db5032a55dd5b0d115262c883cb4
HID: ntrig: validate feature report details

commit 875b4e3763dbc941f15143dd1a18d10bb0be303b upstream.

A HID device could send a malicious feature report that would cause the
ntrig HID driver to trigger a NULL dereference during initialization:

[57383.031190] usb 3-1: New USB device found, idVendor=1b96, idProduct=0001
...
[57383.315193] BUG: unable to handle kernel NULL pointer dereference at 0000000000000030
[57383.315308] IP: [<ffffffffa08102de>] ntrig_probe+0x25e/0x420 [hid_ntrig]

CVE-2013-2896

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Rafi Rubin <rafi@seas.upenn.edu>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/hid/hid-ntrig.c