#36 pcapsipdump crashes while parsing packet greater than MTU

[Divyanshu Chauhan]

Core was generated by `./pcapsipdump-debug udp -f -i bond0 -n 9810905244 -d ./%Y%m%d-%H%M%S-%f-%t.pcap'.
Program terminated with signal 11, Segmentation fault.
#0  0x00007f49d97a4e4a in memchr () from /lib64/libc.so.6
 Missing separate debuginfos, use: debuginfo-install glibc-2.17-222.el7.x86_64 libgcc-4.8.5-28.el7_5.1.x86_64 libstdc++-4.8.5-28.el7_5.1.x86_64
(gdb) bt
#0  0x00007f49d97a4e4a in memchr () from /lib64/libc.so.6
#1  0x00007f49d97abab1 in memmem () from /lib64/libc.so.6
#2  0x0000000000409b0c in gettag (
    ptr=0x1a9831a "INVITE sip:0590480768@10.12.0.101:5062 SIP/2.0\r\nP-Location: SM;origlocname="..., len=1472, tag=0x431ed9 "To:", gettaglen=0x7ffffd3ff490) at pcapsipdump_strlib.cpp:12
#3  0x0000000000408cdb in get_sip_peername (
    data=0x1a9831a "INVITE sip:0590480768@10.12.0.101:5062 SIP/2.0\r\nP-Location: SM;origlocname="..., data_len=1472, tag=0x431ed9 "To:", peername=0x7ffffd3ff760 "", peername_len=256) at pcapsipdump.cpp:668
#4  0x00000000004083e2 in main (argc=9, argv=0x7ffffd4008c8) at pcapsipdump.cpp:561