Re: [PATCH 06/18] netlink: Do not subscribe to non-existent groups

[David Miller]

From: Dmitry Safonov <dima@xxxxxxxxxx>
Date: Thu, 26 Jul 2018 03:31:32 +0100

> Make ABI more strict about subscribing to group > ngroups.
> Code doesn't check for that and it looks bogus.
> (one can subscribe to non-existing group)
> Still, it's possible to bind() to all possible groups with (-1)
> 
> Cc: "David S. Miller" <davem@xxxxxxxxxxxxx>
> Cc: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
> Cc: Steffen Klassert <steffen.klassert@xxxxxxxxxxx>
> Cc: netdev@xxxxxxxxxxxxxxx
> Signed-off-by: Dmitry Safonov <dima@xxxxxxxxxx>

This really has nothing to do with adding a compat layer for xfrm,
and is a bug fix that should be submitted separately in it's own
right.