syzbot has bisected this bug to:
commit ab92d68fc22f9afab480153bd82a20f6e2533769
Author: Taehee Yoo <ap420073@xxxxxxxxx>
Date: Mon Oct 21 18:47:51 2019 +0000
net: core: add generic lockdep keys
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=15769712e00000
start commit: 419593da Add linux-next specific files for 20191129
git tree: linux-next
final crash: https://syzkaller.appspot.com/x/report.txt?x=17769712e00000
console output: https://syzkaller.appspot.com/x/log.txt?x=13769712e00000
kernel config: https://syzkaller.appspot.com/x/.config?x=7c04b0959e75c206
dashboard link: https://syzkaller.appspot.com/bug?extid=4925d60532bf4c399608
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16148e9ce00000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12a1f786e00000
Reported-by: syzbot+4925d60532bf4c399608@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: ab92d68fc22f ("net: core: add generic lockdep keys")
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
