[syzbot] Monthly mm report (Aug 2023)

[syzbot]

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, 1 new issues were detected and 0 were fixed.
In total, 40 issues are still open and 228 have been fixed so far.

Some of the still happening issues:

Ref Crashes Repro Title
<1> 534     No    KCSAN: data-race in generic_fillattr / shmem_mknod (2)
                  https://syzkaller.appspot.com/bug?extid=702361cf7e3d95758761
<2> 492     No    KCSAN: data-race in generic_fillattr / shmem_unlink (3)
                  https://syzkaller.appspot.com/bug?extid=f682b67a78ce05867e78
<3> 108     No    KCSAN: data-race in __filemap_remove_folio / shmem_get_folio_gfp
                  https://syzkaller.appspot.com/bug?extid=ec4650f158c91a963120
<4> 97      Yes   WARNING: suspicious RCU usage in mas_walk (2)
                  https://syzkaller.appspot.com/bug?extid=8645fe63c4d22c8d27b8
<5> 1       No    WARNING in try_to_migrate_one
                  https://syzkaller.appspot.com/bug?extid=94d51f4b3c59cdad469d
<6> 1       Yes   general protection fault in unlink_file_vma (2)
                  https://syzkaller.appspot.com/bug?extid=7fbdbd17a5bd6d01bc65

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