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Date:   Tue, 14 Nov 2023 19:00:22 -0800
From:   syzbot <>
Subject: [syzbot] Monthly mm report (Nov 2023)

Hello mm maintainers/developers,

This is a 31-day syzbot report for the mm subsystem.
All related reports/information can be found at:

During the period, 9 new issues were detected and 0 were fixed.
In total, 49 issues are still open and 237 have been fixed so far.

Some of the still happening issues:

Ref  Crashes Repro Title
<1>  7353    Yes   WARNING in ext4_dirty_folio
<2>  616     No    KCSAN: data-race in generic_fillattr / shmem_mknod (2)
<3>  575     No    KCSAN: data-race in generic_fillattr / shmem_unlink (3)
<4>  272     Yes   BUG: bad usercopy in fpa_set
<5>  131     No    KCSAN: data-race in __filemap_remove_folio / folio_mapping (2)
<6>  15      Yes   memory leak in xas_create
<7>  10      Yes   kernel BUG in do_page_mkwrite
<8>  4       Yes   INFO: task hung in __unmap_and_move (4)
<9>  2       Yes   BUG: unable to handle kernel paging request in __pte_offset_map_lock
<10> 1       Yes   general protection fault in unlink_file_vma (2)

This report is generated by a bot. It may contain errors.
See for more information about syzbot.
syzbot engineers can be reached at

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

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