syzbot has bisected this issue to: commit 49b0638502da097c15d46cd4e871dbaa022caf7c Author: Suren Baghdasaryan <surenb@xxxxxxxxxx> Date: Fri Aug 4 15:27:19 2023 +0000 mm: enable page walking API to lock vmas during the walk bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=11fd2348680000 start commit: 7733171926cc Merge tag 'mailbox-v6.6' of git://git.linaro... git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=13fd2348680000 console output: https://syzkaller.appspot.com/x/log.txt?x=15fd2348680000 kernel config: https://syzkaller.appspot.com/x/.config?x=b273cdfbc13e9a4b dashboard link: https://syzkaller.appspot.com/bug?extid=b591856e0f0139f83023 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15d4ecd0680000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1055c284680000 Reported-by: syzbot+b591856e0f0139f83023@xxxxxxxxxxxxxxxxxxxxxxxxx Fixes: 49b0638502da ("mm: enable page walking API to lock vmas during the walk") For information about bisection process see: https://goo.gl/tpsmEJ#bisection