[syzbot] Monthly mm report (Mar 2026)

[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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