[PATCH] Fix crash when system has no ipv6 address [BZ #17125]

[Siddhesh Poyarekar]

On Tue, Jul 08, 2014 at 02:16:30PM +0200, Andreas Schwab wrote:
> Siddhesh Poyarekar <siddhesh@redhat.com> writes:
> 
> > The test case bug-ga2 crashes when the system it is running on has no
> > ipv6 address configured.  This is because we point the cache (that is
> > freed on exit) to a static variable if there is no ipv6 address, which
> > later results in freeing an invalid pointer.
> 
> Why is this not working?
> 
>     .usecnt = 1,	/* Make sure we never try to delete this entry.  */
> 

Because it uses free() instead of __free_in6ai.  my patch has a leak
anyway, so it is wrong.  I'll write another fix for it.

Siddhesh
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