Hello,
I noticed that mainline commit df80cd9b28b9 ("sctp: do not peel off an assoc from one netns to another one") has been backported to stable 4.4 branch twice:
- first as commit 46bdabbca02e in 4.4.100 - then again as commit 2a0e60907e54 in 4.4.101
so that the check it adds in sctp_do_peeloff() is now performed twice.
Michal Kubecek