Re: [PATCH net-next] udp: fix jump label misuse

2018-11-16 Thread David Miller
From: Paolo Abeni 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 concurrentl

[PATCH net-next] udp: fix jump label misuse

2018-11-14 Thread Paolo Abeni
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 act