[syzbot] Monthly mm report (Mar 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, 9 new issues were detected and 0 were fixed.
In total, 129 issues are still open and 364 have already been fixed.

Some of the still happening issues:

Ref Crashes Repro Title
<1> 20661 Yes WARNING in path_noexec (2)
https://syzkaller.appspot.com/bug?extid=a9391462075ffb9f77c6
<2> 17139 Yes kernel BUG in hpage_collapse_scan_file (2)
https://syzkaller.appspot.com/bug?extid=bf6e6a6ca143afea5ca2
<3> 7455 Yes WARNING in ext4_dirty_folio
https://syzkaller.appspot.com/bug?extid=ecab51a4a5b9f26eeaa1
<4> 3032 Yes possible deadlock in filemap_fault
https://syzkaller.appspot.com/bug?extid=7736960b837908f3a81d
<5> 1717 Yes kernel BUG in __filemap_add_folio
https://syzkaller.appspot.com/bug?extid=4d3cc33ef7a77041efa6
<6> 946 No KCSAN: data-race in __filemap_remove_folio / folio_mapping (2)
https://syzkaller.appspot.com/bug?extid=606f94dfeaaa45124c90
<7> 687 Yes INFO: task hung in _vm_unmap_aliases (3)
https://syzkaller.appspot.com/bug?extid=fe8f8efd070d727de971
<8> 686 Yes INFO: rcu detected stall in addrconf_rs_timer (6)
https://syzkaller.appspot.com/bug?extid=fecf8bd19c1f78edb255
<9> 555 Yes INFO: rcu detected stall in sys_openat (3)
https://syzkaller.appspot.com/bug?extid=23d96fb466ad56cbb5e5
<10> 512 Yes INFO: rcu detected stall in x64_sys_call
https://syzkaller.appspot.com/bug?extid=65203730e781d98f23a0

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