syzbot has bisected this issue to:
commit 56dd525abd56f7acd7b44a52935726e3ada4916c
Author: Xin Long <lucien.xin@xxxxxxxxx>
Date: Mon Aug 19 14:02:49 2019 +0000
sctp: add SCTP_AUTH_SUPPORTED sockopt
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=162bdf22300000
start commit: 6f20c8adb181 net/tcp_fastopen: fix data races around tfo_a..
git tree: net
final oops: https://syzkaller.appspot.com/x/report.txt?x=152bdf22300000
console output: https://syzkaller.appspot.com/x/log.txt?x=112bdf22300000
kernel config: https://syzkaller.appspot.com/x/.config?x=6da37c7627210105
dashboard link: https://syzkaller.appspot.com/bug?extid=b774577370208727d12b
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12d37b4a300000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=114bd0ea300000
Reported-by: syzbot+b774577370208727d12b@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 56dd525abd56 ("sctp: add SCTP_AUTH_SUPPORTED sockopt")
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
