[syzbot] Monthly bpf report (Dec 2025)

[syzbot] Monthly bpf report (Dec 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, 4 new issues were detected and 2 were fixed.
In total, 20 issues are still open and 315 have already been fixed.

Some of the still happening issues:

Ref Crashes Repro Title
<1> 11073   Yes   WARNING in reg_bounds_sanity_check (2)
                  https://syzkaller.appspot.com/bug?extid=c950cc277150935cc0b5
<2> 1597    Yes   WARNING in trace_suspend_resume
                  https://syzkaller.appspot.com/bug?extid=99d4fec338b62b703891
<3> 24      No    KCSAN: data-race in __htab_map_lookup_elem / bpf_lru_pop_free
                  https://syzkaller.appspot.com/bug?extid=ad4661d6ca888ce7fe11
<4> 4       Yes   INFO: rcu detected stall in task_work_add
                  https://syzkaller.appspot.com/bug?extid=f2cf09711ff194bc2c22
<5> 3       Yes   KASAN: stack-out-of-bounds Write in __bpf_get_stack
                  https://syzkaller.appspot.com/bug?extid=d1b7fa1092def3628bd7
<6> 1       Yes   possible deadlock in bpf_lru_push_free (2)
                  https://syzkaller.appspot.com/bug?extid=18b26edb69b2e19f3b33

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