[Bug 1964506] Re: Ping: checks payloads incorrectly, ignores all mismatch replies

[Dan Bungert]

The armhf test seems to have been broken for a bit, in root-unittests:

test_exec_dynamicuser: exec-dynamicuser-statedir.service: exit status 1, expected 0
FAIL: test-execute (code: 134)

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Title:
  Ping: checks payloads incorrectly, ignores all mismatch replies

Status in iputils package in Ubuntu:
  Fix Released
Status in iputils source package in Focal:
  Fix Committed

Bug description:
  = Impact =

  the ping statistics are incorrect when dealing with truncated packets

  = Test case =

  $ ping -c 1 -s 1200 8.8.8.8

  should list truncated replies and received packets

  = Regression potential =

  the changes are limited to the ping source any regression would impact
  that utility, check that responses are correctly handled and
  statistics reflecting what is expected

  --------------------------------------------------

  Problematic commit reverted upstream causing incorrect behavior in
  Ubuntu Focal.

  Discussion: https://github.com/iputils/iputils/issues/320
  Fix: https://github.com/iputils/iputils/pull/321
  Release: https://github.com/iputils/iputils/releases/tag/20210722

  Could this patch be added for a Focal update please?

  1) Ubuntu 20.04.3 LTS
  2) 3:20190709-3
  3)

  focal$ ping -c 1 -s 1200 8.8.8.8
  PING 8.8.8.8 (8.8.8.8) 1200(1228) bytes of data.

  --- 8.8.8.8 ping statistics ---
  1 packets transmitted, 0 received, 100% packet loss, time 0ms

  4)

  xenial$ ping -c 1 -s 1200 8.8.8.8
  PING 8.8.8.8 (8.8.8.8) 1200(1228) bytes of data.
  76 bytes from 8.8.8.8: icmp_seq=1 ttl=61 (truncated)

  --- 8.8.8.8 ping statistics ---
  1 packets transmitted, 1 received, 0% packet loss, time 0ms
  rtt min/avg/max/mdev = 0.284/0.284/0.284/0.000 ms

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