syzbot has bisected this bug to:
commit 2af6106ae949651d529c8c3f0734c3a7babd0d4b
Author: Jose Abreu <Jose.Abreu@xxxxxxxxxxxx>
Date: Tue Jul 9 08:03:00 2019 +0000
net: stmmac: Introducing support for Page Pool
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=15f481c8e00000
start commit: 1574cf83 Merge tag 'mlx5-updates-2019-11-01' of git://git...
git tree: net-next
final crash: https://syzkaller.appspot.com/x/report.txt?x=17f481c8e00000
console output: https://syzkaller.appspot.com/x/log.txt?x=13f481c8e00000
kernel config: https://syzkaller.appspot.com/x/.config?x=c26333525dde4c39
dashboard link: https://syzkaller.appspot.com/bug?extid=d9536adc269404a984f8
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16050314e00000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=159c59b2e00000
Reported-by: syzbot+d9536adc269404a984f8@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 2af6106ae949 ("net: stmmac: Introducing support for Page Pool")
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
