From: Kees Cook <keescook@chromium.org>
Date: Wed, 11 Sep 2013 19:56:56 +0000 (+0200)
Subject: HID: logitech-dj: validate output report details
X-Git-Tag: v3.2.52~79
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1eb7b3faf9357f481238a3237f637f77fce974a5;p=pandora-kernel.git

HID: logitech-dj: validate output report details

commit 297502abb32e225fb23801fcdb0e4f6f8e17099a upstream.

A HID device could send a malicious output report that would cause the
logitech-dj HID driver to leak kernel memory contents to the device, or
trigger a NULL dereference during initialization:

[  304.424553] usb 1-1: New USB device found, idVendor=046d, idProduct=c52b
...
[  304.780467] BUG: unable to handle kernel NULL pointer dereference at 0000000000000028
[  304.781409] IP: [<ffffffff815d50aa>] logi_dj_recv_send_report.isra.11+0x1a/0x90

CVE-2013-2895

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
[bwh: Backported to 3.2: drop inapplicable changes to
 logi_dj_recv_send_report()]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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