On 5/9/18 4:42 AM, Paolo Abeni wrote:
> Damir reported a breakage of SO_BINDTODEVICE for UDP sockets.
> In absence of VRF devices, after commit fb74c27735f0 ("net:
> ipv4: add second dif to udp socket lookups") the dif mismatch
> isn't fatal anymore for UDP socket lookup with non null
> sk_bound_dev_if, breaking SO_BINDTODEVICE semantics.
>
> This changeset addresses the issue making the dif match mandatory
> again in the above scenario.
>
> Reported-by: Damir Mansurov <[email protected]>
> Fixes: fb74c27735f0 ("net: ipv4: add second dif to udp socket lookups")
> Fixes: 1801b570dd2a ("net: ipv6: add second dif to udp socket lookups")
> Signed-off-by: Paolo Abeni <[email protected]>
> ---
> net/ipv4/udp.c | 4 ++--
> net/ipv6/udp.c | 4 ++--
> 2 files changed, 4 insertions(+), 4 deletions(-)
>
Acked-by: David Ahern <[email protected]>
