Re: [syzbot] [kernfs?] WARNING: suspicious RCU usage in mas_start

[syzbot]

syzbot suspects this issue was fixed by commit:

commit 6db504ce55bdbc575723938fc480713c9183f6a2
Author: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx>
Date:   Wed Mar 8 22:03:10 2023 +0000

    mm/ksm: fix race with VMA iteration and mm_struct teardown

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1674715fc80000
start commit:   f3a2439f20d9 Merge tag 'rproc-v6.3' of git://git.kernel.or..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=dd442ddf29eaca0c
dashboard link: https://syzkaller.appspot.com/bug?extid=d79e205d463e603f47ff
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12cfaf1cc80000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=149edbf0c80000

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

#syz fix: mm/ksm: fix race with VMA iteration and mm_struct teardown

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