[syzbot] Monthly bpf report (Nov 2025)

[syzbot]

Hello bpf maintainers/developers,

This is a 31-day syzbot report for the bpf subsystem.
All related reports/information can be found at:
https://syzkaller.appspot.com/upstream/s/bpf

During the period, 3 new issues were detected and 1 were fixed.
In total, 21 issues are still open and 312 have already been fixed.

Some of the still happening issues:

Ref Crashes Repro Title
<1> 10888   Yes   KASAN: invalid-access Write in do_bad_area
                  https://syzkaller.appspot.com/bug?extid=997752115a851cb0cf36
<2> 97      No    INFO: task hung in dev_map_free (3)
                  https://syzkaller.appspot.com/bug?extid=9bb2e1829da8582dcffa
<3> 21      No    KCSAN: data-race in __htab_map_lookup_elem / bpf_lru_pop_free
                  https://syzkaller.appspot.com/bug?extid=ad4661d6ca888ce7fe11
<4> 12      Yes   INFO: rcu detected stall in sys_close (7)
                  https://syzkaller.appspot.com/bug?extid=393022c13d02e1f680e3
<5> 5       Yes   INFO: rcu detected stall in vm_area_alloc (6)
                  https://syzkaller.appspot.com/bug?extid=2ddfdc64a6b68a324ae2
<6> 2       Yes   possible deadlock in down_trylock (3)
                  https://syzkaller.appspot.com/bug?extid=c3740bc819eb55460ec3

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