An INIT-chunk with a FORWARD-TSN-SUPPORTED parameter having a length of 8 bytes is accepted by the linux kernel. According to the definition in https://tools.ietf.org/html/rfc3758#page-5 the length of this parameter has to be 4 bytes long, so the implementation should ideally react with an ABORT. Testscript available at: https://github.com/nplab/PR_SCTP_Testsuite/blob/master/forward-tsn/error-cases/init-with-forward-tsn-too-long.pkt
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