[syzbot] Monthly mm report (Oct 2025)

[syzbot] Monthly mm report (Oct 2025)

[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, 7 new issues were detected and 5 were fixed.
In total, 117 issues are still open and 349 have already been fixed.

Some of the still happening issues:

Ref  Crashes Repro Title
<1>  7428    Yes   WARNING in ext4_dirty_folio
                   https://syzkaller.appspot.com/bug?extid=ecab51a4a5b9f26eeaa1
<2>  5678    Yes   WARNING in v9fs_fid_get_acl
                   https://syzkaller.appspot.com/bug?extid=a83dc51a78f0f4cf20da
<3>  2930    Yes   possible deadlock in filemap_fault
                   https://syzkaller.appspot.com/bug?extid=7736960b837908f3a81d
<4>  761     Yes   kernel BUG in __filemap_add_folio
                   https://syzkaller.appspot.com/bug?extid=4d3cc33ef7a77041efa6
<5>  589     Yes   INFO: rcu detected stall in addrconf_rs_timer (6)
                   https://syzkaller.appspot.com/bug?extid=fecf8bd19c1f78edb255
<6>  582     Yes   INFO: task hung in _vm_unmap_aliases (3)
                   https://syzkaller.appspot.com/bug?extid=fe8f8efd070d727de971
<7>  485     Yes   kernel BUG in filemap_unaccount_folio
                   https://syzkaller.appspot.com/bug?extid=17a207d226b8a5fb0fd9
<8>  469     Yes   INFO: rcu detected stall in sys_newfstatat (4)
                   https://syzkaller.appspot.com/bug?extid=1c02a56102605204445c
<9>  457     Yes   INFO: rcu detected stall in sys_openat (3)
                   https://syzkaller.appspot.com/bug?extid=23d96fb466ad56cbb5e5
<10> 390     Yes   INFO: rcu detected stall in x64_sys_call
                   https://syzkaller.appspot.com/bug?extid=65203730e781d98f23a0

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