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51a0e215ec
Prevent access to arbitrary memory locations in gen_ndis_set_resp via manipulation of buf->InformationBufferOffset. Original implementation permits manipulation of InformationBufferOffset to exploit OID_GEN_CURRENT_PACKET_FILTER to set arbitrary memory contents within a 32byte offset as the devices packet filter. The packet filter value may be next retrieved using gen_ndis_query_resp so it is possible to extract specific memory regions two bytes a time. The rndis_query_response was not modified as neither the buffer offset nor length passed to gen_ndis_query_resp is used. Signed-off-by: Szymon Heidrich <szymon.heidrich@gmail.com>