K 10
svn:author
V 2
bz
K 8
svn:date
V 27
2020-03-02T13:23:28.869605Z
K 7
svn:log
V 656
MFC r358427:  initialize oifp to avoid bogus results/panics in edge cases

  In certain cases (probably not during normal operation but observed in
  the lab during development) ip6_ouput() could return without error
  and ifpp (&oifp) not updated.
  Given oifp was never initialized we would take the later branch
  as oifp was not NULL, and when calling icmp6_ifstat_inc() we would
  panic dereferencing a garbage pointer.
  For code stability initialize oifp to NULL before first use to always
  have a deterministic value and not rely on a called function to behave
  and always and for ever do the work for us as we hope for.

  Sponsored by:	Netflix

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