[Bug 2962] New: client leaks ssh context, host_arg and packet.c leaks kex-structure.

[bugzilla-daemon at bugzilla.mindrot.org]

https://bugzilla.mindrot.org/show_bug.cgi?id=2962

            Bug ID: 2962
           Summary: client leaks ssh context, host_arg and packet.c leaks
                    kex-structure.
           Product: Portable OpenSSH
           Version: 7.9p1
          Hardware: All
                OS: All
            Status: NEW
          Severity: minor
          Priority: P5
         Component: ssh
          Assignee: unassigned-bugs at mindrot.org
          Reporter: markus at blueflash.cc

Created attachment 3235
  --> https://bugzilla.mindrot.org/attachment.cgi?id=3235&action=edit
client_cleanup.diff

After completing the session, the client leaks the ssh structure and
the host_arg.

Also, on cleanup, packet.c leaks the kex-structure (which is held
inside the ssh struct).

I've also moved host_arg from global to local variable, because it is
only passed to one function.

Patch is attached.

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