From: Paolo Abeni <pab...@redhat.com>
Date: Thu, 15 Nov 2018 02:34:50 +0100
> The commit 60fb9567bf30 ("udp: implement complete book-keeping for
> encap_needed") introduced a severe misuse of jump label APIs, which
> syzbot, as reported by Eric, was able to exploit.
>
> When multiple sockets/process can concurrently request (and than
> disable) the udp encap, we need to track the activation counter with
> *_inc()/*_dec() jump label variants, or we can experience bad things
> at disable time.
>
> Fixes: 60fb9567bf30 ("udp: implement complete book-keeping for encap_needed")
> Reported-by: Eric Dumazet <eric.duma...@gmail.com>
> Signed-off-by: Paolo Abeni <pab...@redhat.com>
Applied, thanks Paolo.
