Be more careful parsing incoming L2TP control packet
as its embedded AVP length could violate RFC2661.
This fixes bug #70: insufficient validation could lead to crash with SIGSEGV processing improperly formatted AVP Q.931 Cause Code.
M l2tp_avp.c
Authored by: dadv 2020-09-05
Parent: [r2376]
Child: [r2378]