syzbot suspects this issue was fixed by commit:
commit dfd402a4c4baae42398ce9180ff424d589b8bffc
Author: Marco Elver <elver@xxxxxxxxxx>
Date: Thu Nov 14 18:02:54 2019 +0000
kcsan: Add Kernel Concurrency Sanitizer infrastructure
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13eb65d6900000
start commit: 46cf053e Linux 5.5-rc3
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=ed9d672709340e35
dashboard link: https://syzkaller.appspot.com/bug?extid=02d9172bf4c43104cd70
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=147e5ac1e00000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14b49e71e00000
If the result looks correct, please mark the issue as fixed by replying with:
#syz fix: kcsan: Add Kernel Concurrency Sanitizer infrastructure
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
