cdc-acm: add sanity checks
Check the special CDC headers for a plausible minimum length. Another big operating systems ignores such garbage. Signed-off-by:Oliver Neukum <oneukum@suse.de> CC: stable@vger.kernel.org Reviewed-by:
Adam Lee <adam8157@gmail.com> Tested-by:
Adam Lee <adam8157@gmail.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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