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, 8 new issues were detected and 0 were fixed. In total, 40 issues are still open and 224 have been fixed so far. Some of the still happening issues: Ref Crashes Repro Title <1> 135391 Yes KMSAN: uninit-value in virtqueue_add (4) https://syzkaller.appspot.com/bug?extid=d7521c1e3841ed075a42 <2> 7366 Yes WARNING in ext4_dirty_folio https://syzkaller.appspot.com/bug?extid=ecab51a4a5b9f26eeaa1 <3> 689 Yes KCSAN: data-race in generic_fillattr / shmem_mknod (2) https://syzkaller.appspot.com/bug?extid=702361cf7e3d95758761 <4> 645 Yes BUG: bad usercopy in fpa_set https://syzkaller.appspot.com/bug?extid=cb76c2983557a07cdb14 <5> 632 No KCSAN: data-race in generic_fillattr / shmem_unlink (3) https://syzkaller.appspot.com/bug?extid=f682b67a78ce05867e78 <6> 626 Yes possible deadlock in filemap_fault https://syzkaller.appspot.com/bug?extid=7736960b837908f3a81d <7> 200 No KCSAN: data-race in __filemap_remove_folio / folio_mapping (2) https://syzkaller.appspot.com/bug?extid=606f94dfeaaa45124c90 <8> 73 Yes WARNING in __kfence_free (3) https://syzkaller.appspot.com/bug?extid=59f37b0ab4c558a5357c <9> 36 Yes BUG: unable to handle kernel paging request in list_lru_add https://syzkaller.appspot.com/bug?extid=2403e3909382fbdeaf6c <10> 33 Yes BUG: unable to handle kernel NULL pointer dereference in __kmap_local_page_prot https://syzkaller.appspot.com/bug?extid=b18872ea9631b5dcef3b --- 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.