PC-BSD/trueos 5681405sys/netinet sctputil.c sctp_usrreq.c

Improve input validation for the IPPROTO_SCTP level socket options
SCTP_CONNECT_X and SCTP_CONNECT_X_DELAYED.

Some issues where found by running syzkaller.

MFC after:              3 days
DeltaFile
+23-32sys/netinet/sctputil.c
+4-10sys/netinet/sctp_usrreq.c
+3-4sys/netinet/sctputil.h
+30-463 files

UnifiedSplitRaw