[syzbot] Monthly mm report (Jul 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, 1 new issues were detected and 0 were fixed.
In total, 78 issues are still open and 373 have already been fixed.
There are also 42 low-priority issues.

Some of the still happening issues:

Ref Crashes Repro Title
<1> 29106 Yes KASAN: use-after-free Read in copy_folio_from_iter_atomic (2)
https://syzkaller.appspot.com/bug?extid=6cc93ec9a4035badb85f
<2> 3862 Yes WARNING in trace_suspend_resume
https://syzkaller.appspot.com/bug?extid=99d4fec338b62b703891
<3> 3102 Yes possible deadlock in filemap_fault
https://syzkaller.appspot.com/bug?extid=7736960b837908f3a81d
<4> 588 Yes INFO: rcu detected stall in sys_newfstatat (4)
https://syzkaller.appspot.com/bug?extid=1c02a56102605204445c
<5> 497 Yes kernel BUG in filemap_unaccount_folio
https://syzkaller.appspot.com/bug?extid=17a207d226b8a5fb0fd9
<6> 283 No kernel BUG in __page_table_check_zero (3)
https://syzkaller.appspot.com/bug?extid=2b5fe617654be3d8848b
<7> 264 No INFO: task hung in migrate_pages_batch (4)
https://syzkaller.appspot.com/bug?extid=f523acb98cd782b4872e
<8> 132 Yes INFO: rcu detected stall in __dentry_kill
https://syzkaller.appspot.com/bug?extid=f8ccdac0a7eede0e1ae5
<9> 96 Yes INFO: rcu detected stall in sys_setsockopt (4)
https://syzkaller.appspot.com/bug?extid=6e61d59e9d2150c8492b
<10> 57 Yes memory leak in xas_create
https://syzkaller.appspot.com/bug?extid=a785d07959bc94837d51

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