From: Lorenzo Bianconi <lorenzo.bianc...@redhat.com>
Date: Fri, 27 Jul 2018 18:15:46 +0200
> Remove BUG_ON() from fib_compute_spec_dst routine and check
> in_dev pointer during flowi4 data structure initialization.
> fib_compute_spec_dst routine can be run concurrently with device removal
> where ip_ptr net_device pointer is set to NULL. This can happen
> if userspace enables pkt info on UDP rx socket and the device
> is removed while traffic is flowing
>
> Fixes: 35ebf65e851c ("ipv4: Create and use fib_compute_spec_dst() helper")
> Signed-off-by: Lorenzo Bianconi <lorenzo.bianc...@redhat.com>
Applied and queued up for -stable, thank you.
