[syzbot] Monthly mm report (May 2024)

From: syzbot
Date: Fri May 31 2024 - 02:48:57 EST


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, 8 new issues were detected and 1 were fixed.
In total, 56 issues are still open and 242 have been fixed so far.

Some of the still happening issues:

Ref Crashes Repro Title
<1> 10236 Yes KASAN: slab-out-of-bounds Read in generic_perform_write
https://syzkaller.appspot.com/bug?extid=4a2376bc62e59406c414
<2> 7377 Yes WARNING in ext4_dirty_folio
https://syzkaller.appspot.com/bug?extid=ecab51a4a5b9f26eeaa1
<3> 1078 Yes possible deadlock in filemap_fault
https://syzkaller.appspot.com/bug?extid=7736960b837908f3a81d
<4> 720 Yes KCSAN: data-race in generic_fillattr / shmem_mknod (2)
https://syzkaller.appspot.com/bug?extid=702361cf7e3d95758761
<5> 466 Yes inconsistent lock state in __mmap_lock_do_trace_acquire_returned
https://syzkaller.appspot.com/bug?extid=76f802bc1dee8ba28a6e
<6> 390 Yes WARNING in kunmap_local_indexed
https://syzkaller.appspot.com/bug?extid=691cb37358791bebebe6
<7> 93 Yes BUG: unable to handle kernel NULL pointer dereference in __kmap_local_page_prot
https://syzkaller.appspot.com/bug?extid=b18872ea9631b5dcef3b
<8> 72 No INFO: task hung in __lru_add_drain_all (2)
https://syzkaller.appspot.com/bug?extid=5294aa7d73bb0fa85bd0
<9> 49 Yes BUG: unable to handle kernel paging request in list_lru_add
https://syzkaller.appspot.com/bug?extid=2403e3909382fbdeaf6c
<10> 46 Yes INFO: rcu detected stall in sys_openat (3)
https://syzkaller.appspot.com/bug?extid=23d96fb466ad56cbb5e5

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