[PATCH 3.18 18/21] sctp: verify size of a new chunk in _sctp_make_chunk()

3.18-stable review patch. If anyone has any objections, please let me know. -- From: Alexey Kodanev [ Upstream commit 07f2c7ab6f8d0a7e7c5764c4e6cc9c52951b9d9c ] When SCTP makes INIT or INIT_ACK packet the total chunk length can exceed

[PATCH 3.18 18/21] sctp: verify size of a new chunk in _sctp_make_chunk()

3.18-stable review patch. If anyone has any objections, please let me know. -- From: Alexey Kodanev [ Upstream commit 07f2c7ab6f8d0a7e7c5764c4e6cc9c52951b9d9c ] When SCTP makes INIT or INIT_ACK packet the total chunk length can exceed SCTP_MAX_CHUNK_LEN which leads to kernel