Hello mm maintainers/developers, This is a 31-day syzbot report for the mm subsystem. All related reports/information can be found at: https://syzkaller.appspot.com/upstream/s/mm During the period, 13 new issues were detected and 2 were fixed. In total, 94 issues are still open and 266 have been fixed so far. Some of the still happening issues: Ref Crashes Repro Title <1> 10332 Yes KASAN: slab-out-of-bounds Read in generic_perform_write https://syzkaller.appspot.com/bug?extid=4a2376bc62e59406c414 <2> 7385 Yes WARNING in ext4_dirty_folio https://syzkaller.appspot.com/bug?extid=ecab51a4a5b9f26eeaa1 <3> 6624 Yes possible deadlock in lock_mm_and_find_vma (2) https://syzkaller.appspot.com/bug?extid=b02bbe0ff80a09a08c1b <4> 3600 Yes INFO: task hung in page_cache_ra_unbounded (2) https://syzkaller.appspot.com/bug?extid=265e1cae90f8fa08f14d <5> 2520 Yes INFO: rcu detected stall in worker_thread (9) https://syzkaller.appspot.com/bug?extid=225bfad78b079744fd5e <6> 1786 Yes possible deadlock in filemap_fault https://syzkaller.appspot.com/bug?extid=7736960b837908f3a81d <7> 852 Yes possible deadlock in gup_fast_fallback https://syzkaller.appspot.com/bug?extid=63ba90b81c16b86379bd <8> 758 Yes KCSAN: data-race in generic_fillattr / shmem_mknod (2) https://syzkaller.appspot.com/bug?extid=702361cf7e3d95758761 <9> 721 No WARNING: locking bug in __schedule https://syzkaller.appspot.com/bug?extid=46b40e354b532433eeef <10> 606 Yes INFO: rcu detected stall in corrupted (4) https://syzkaller.appspot.com/bug?extid=aa7d098bd6fa788fae8e --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. To disable reminders for individual bugs, reply with the following command: #syz set <Ref> no-reminders To change bug's subsystems, reply with: #syz set <Ref> subsystems: new-subsystem You may send multiple commands in a single email message.