Issues comes from:

(gdb) bt
#0  render (screen_width=144) at ss.c:1204
#1  main (argc=<optimized out>, argv=<optimized out>) at ss.c:4974

render (screen_width=144) at ss.c:1204

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Touch seeded packages, which is subscribed to iproute2 in Ubuntu.
https://bugs.launchpad.net/bugs/1913187

Title:
  iproute2 segfaults when filtering sockets

Status in iproute2 package in Ubuntu:
  Fix Released
Status in iproute2 source package in Bionic:
  Confirmed

Bug description:
  When in Ubuntu Bionic, if one calls:

  $ sudo ss -Hnp -o state established 'dport = 22' src 127.0.0.1 dst 127.0.0.1
  tcp              0                    0                                   
127.0.0.1:58910                             127.0.0.1:22               
users:(("ssh",pid=11672,fd=3)) timer:(keepalive,119min,0)

  it works. Just like when in Groovy:

  $ sudo ss -Hnp -o state established 'dport = 22' src 127.0.0.1 dst 127.0.0.1
  tcp               0                    0                                  
127.0.0.1:58908                             127.0.0.1:22               
users:(("ssh",pid=1488591,fd=3)) timer:(keepalive,119min,0)

  but.. if there is nothing to show, in Bionic we get a segfault:

  $ sudo ss -Hnp -o state established 'dport = 22' src 127.0.0.1 dst 127.0.0.1
  Segmentation fault

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