[syzbot] Monthly mm report (Sep 2026)

[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, 2 new issues were detected and 1 were fixed.
In total, 76 issues are still open and 382 have already been fixed.
There are also 39 low-priority issues.

Some of the still happening issues:

Ref  Crashes Repro Title
<1>  3955    Yes   WARNING in trace_suspend_resume
                   https://syzkaller.appspot.com/bug?extid=99d4fec338b62b703891
<2>  3805    Yes   possible deadlock in attr_data_get_block (2)
                   https://syzkaller.appspot.com/bug?extid=262a71e9d2faf8747085
<3>  3136    Yes   possible deadlock in filemap_fault
                   https://syzkaller.appspot.com/bug?extid=7736960b837908f3a81d
<4>  638     Yes   INFO: rcu detected stall in sys_newfstatat (4)
                   https://syzkaller.appspot.com/bug?extid=1c02a56102605204445c
<5>  528     Yes   kernel BUG in filemap_unaccount_folio
                   https://syzkaller.appspot.com/bug?extid=17a207d226b8a5fb0fd9
<6>  329     No    kernel BUG in __page_table_check_zero (3)
                   https://syzkaller.appspot.com/bug?extid=2b5fe617654be3d8848b
<7>  308     No    INFO: task hung in migrate_pages_batch (4)
                   https://syzkaller.appspot.com/bug?extid=f523acb98cd782b4872e
<8>  185     Yes   INFO: rcu detected stall in sys_unshare (9)
                   https://syzkaller.appspot.com/bug?extid=872bccd9a68c6ba47718
<9>  166     Yes   WARNING in ext4_mb_load_buddy_gfp
                   https://syzkaller.appspot.com/bug?extid=fd3f70a4509fca8c265d
<10> 115     Yes   INFO: rcu detected stall in sys_setsockopt (4)
                   https://syzkaller.appspot.com/bug?extid=6e61d59e9d2150c8492b

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