syzbot has bisected this issue to:
commit 3db978d480e2843979a2b56f2f7da726f2b295b2
Author: Vlastimil Babka <vbabka@xxxxxxx>
Date: Mon Jun 8 04:40:24 2020 +0000
kernel/sysctl: support setting sysctl parameters from kernel command line
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=14c7f380580000
start commit: b983b271662b misc: sgi-gru: Don't disable preemption in GR..
git tree: upstream
final oops: https://syzkaller.appspot.com/x/report.txt?x=16c7f380580000
console output: https://syzkaller.appspot.com/x/log.txt?x=12c7f380580000
kernel config: https://syzkaller.appspot.com/x/.config?x=fb6ea01107fa96bd
dashboard link: https://syzkaller.appspot.com/bug?extid=c391aebb8e8e8cd95c55
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=118c6fd0580000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16b6a040580000
Reported-by: syzbot+c391aebb8e8e8cd95c55@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 3db978d480e2 ("kernel/sysctl: support setting sysctl parameters from kernel command line")
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
