From: Steffen Klassert <steffen.klass...@secunet.com>
Date: Mon, 9 Oct 2017 08:43:55 +0200
> A recent patch removed the dst_free() on the allocated
> dst_entry in ipv4_blackhole_route(). The dst_free() marked the
> dst_entry as dead and added it to the gc list. I.e. it was setup
> for a one time usage. As a result we may now have a blackhole
> route cached at a socket on some IPsec scenarios. This makes the
> connection unusable.
>
> Fix this by marking the dst_entry directly at allocation time
> as 'dead', so it is used only once.
>
> Fixes: b838d5e1c5b6 ("ipv4: mark DST_NOGC and remove the operation of
> dst_free()")
> Reported-by: Tobias Brunner <tob...@strongswan.org>
> Signed-off-by: Steffen Klassert <steffen.klass...@secunet.com>
Applied and queued up for -stable.
