HID: zeroplus: validate output report details
authorKees Cook <keescook@chromium.org>
Wed, 11 Sep 2013 19:56:51 +0000 (21:56 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 1 Oct 2013 15:55:47 +0000 (08:55 -0700)
commit69e5a58ed3cdfa6a4a708f6f00ec0ee79e2fe6cd
tree83ed4248e2fcabc74ed800c47c97e3370223ae73
parent7247e66f07168b28410549634ea5d29a84602f81
HID: zeroplus: validate output report details

commit 78214e81a1bf43740ce89bb5efda78eac2f8ef83 upstream.

The zeroplus HID driver was not checking the size of allocated values
in fields it used. A HID device could send a malicious output report
that would cause the driver to write beyond the output report allocation
during initialization, causing a heap overflow:

[ 1442.728680] usb 1-1: New USB device found, idVendor=0c12, idProduct=0005
...
[ 1466.243173] BUG kmalloc-192 (Tainted: G        W   ): Redzone overwritten

CVE-2013-2889

Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/hid/hid-zpff.c