usb: iowarrior: don't trust report_size for buffer size
commit304a854922606ce1b87cae1a972c567232a4013c
authorKees Cook <kees.cook@canonical.com>
Mon, 11 Oct 2010 18:28:16 +0000 (11 11:28 -0700)
committerGreg Kroah-Hartman <gregkh@suse.de>
Mon, 7 Mar 2011 23:17:58 +0000 (7 15:17 -0800)
tree223d9af0c4ec1fcb45038fba400acfbc549e12fd
parent7d307f637652063b51a58ea7142225d7da9c43cf
usb: iowarrior: don't trust report_size for buffer size

commit 3ed780117dbe5acb64280d218f0347f238dafed0 upstream.

If the iowarrior devices in this case statement support more than 8 bytes
per report, it is possible to write past the end of a kernel heap allocation.
This will probably never be possible, but change the allocation to be more
defensive anyway.

Signed-off-by: Kees Cook <kees.cook@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Acked-by: Brandon Philips <bphilips@suse.de>
drivers/usb/misc/iowarrior.c