On Fri, Oct 07, 2022 at 03:08:22PM -0700, syzbot wrote: > syzbot has bisected this issue to: > > commit b1f9e876862d8f7176299ec4fb2108bc1045cbc8 > Author: Peter Xu <peterx@xxxxxxxxxx> > Date: Fri May 13 03:22:56 2022 +0000 > > mm/uffd: enable write protection for shmem & hugetlbfs > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=108e8fb8880000 > start commit: 511cce163b75 Merge tag 'net-6.0-rc8' of git://git.kernel.o.. > git tree: upstream > final oops: https://syzkaller.appspot.com/x/report.txt?x=128e8fb8880000 > console output: https://syzkaller.appspot.com/x/log.txt?x=148e8fb8880000 > kernel config: https://syzkaller.appspot.com/x/.config?x=4520785fccee9b40 > dashboard link: https://syzkaller.appspot.com/bug?extid=2c2bb573a9524a95e787 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14ecac35080000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15668b38880000 > > Reported-by: syzbot+2c2bb573a9524a95e787@xxxxxxxxxxxxxxxxxxxxxxxxx > Fixes: b1f9e876862d ("mm/uffd: enable write protection for shmem & hugetlbfs") > > For information about bisection process see: https://goo.gl/tpsmEJ#bisection > #syz dup: WARNING in change_protection -- Peter Xu