cdc-acm: add sanity checks
Oliver Neukum authored
[ Upstream commit 7e860a6e

 ]

Check the special CDC headers for a plausible minimum length.
Another big operating systems ignores such garbage.
Signed-off-by: default avatarOliver Neukum <oneukum@suse.de>
CC: stable@vger.kernel.org
Reviewed-by: default avatarAdam Lee <adam8157@gmail.com>
Tested-by: default avatarAdam Lee <adam8157@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarSasha Levin <sasha.levin@oracle.com>
57f086bc