Re: KASAN: stack-out-of-bounds Read in update_stack_state

[syzbot]

syzbot suspects this bug was fixed by commit:

commit 4ee7c60de83ac01fa4c33c55937357601631e8ad
Author: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx>
Date:   Fri Mar 23 14:18:03 2018 +0000

    init, tracing: Add initcall trace events

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=11ebd0aee00000
start commit:   0b6b8a3d Merge branch 'bpf-misc-selftest-improvements'
git tree:       bpf-next
kernel config:  https://syzkaller.appspot.com/x/.config?x=82a189bf69e089b5
dashboard link: https://syzkaller.appspot.com/bug?extid=2990ca6e76c080858a9c
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=11dde5b3800000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1347b65d800000

If the result looks correct, please mark the bug fixed by replying with:

#syz fix: init, tracing: Add initcall trace events

For information about bisection process see: https://goo.gl/tpsmEJ#bisection