syzbot has bisected this issue to:
commit fb8a9ee1f05345b1fae37902d32d954d2150437b
Author: Suren Baghdasaryan <surenb@xxxxxxxxxx>
Date: Fri Jul 4 06:07:26 2025 +0000
fs/proc/task_mmu: execute PROCMAP_QUERY ioctl under per-vma locks
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=171c27d4580000
start commit: a62b7a37e6fc Add linux-next specific files for 20250711
git tree: linux-next
final oops: https://syzkaller.appspot.com/x/report.txt?x=149c27d4580000
console output: https://syzkaller.appspot.com/x/log.txt?x=109c27d4580000
kernel config: https://syzkaller.appspot.com/x/.config?x=bb4e3ec360fcbd0f
dashboard link: https://syzkaller.appspot.com/bug?extid=d4316c39e84f412115c9
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14ad50f0580000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1173018c580000
Reported-by: syzbot+d4316c39e84f412115c9@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: fb8a9ee1f053 ("fs/proc/task_mmu: execute PROCMAP_QUERY ioctl under per-vma locks")
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
