[syzbot] Monthly bpf report (Oct 2024)

[syzbot] Monthly bpf report (Oct 2024)

[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, 7 new issues were detected and 0 were fixed.
In total, 43 issues are still open and 272 have been fixed so far.

Some of the still happening issues:

Ref  Crashes Repro Title
<1>  20393   Yes   possible deadlock in trie_delete_elem
                   https://syzkaller.appspot.com/bug?extid=9d95beb2a3c260622518
<2>  1658    Yes   possible deadlock in __bpf_ringbuf_reserve
                   https://syzkaller.appspot.com/bug?extid=850aaf14624dc0c6d366
<3>  247     Yes   KMSAN: uninit-value in ___bpf_prog_run (4)
                   https://syzkaller.appspot.com/bug?extid=853242d9c9917165d791
<4>  159     Yes   possible deadlock in __queue_map_get
                   https://syzkaller.appspot.com/bug?extid=8bdfc2c53fb2b63e1871
<5>  135     No    possible deadlock in trie_update_elem
                   https://syzkaller.appspot.com/bug?extid=ea624e536fee669a05cf
<6>  54      Yes   possible deadlock in queue_stack_map_push_elem
                   https://syzkaller.appspot.com/bug?extid=252bc5c744d0bba917e1
<7>  47      Yes   possible deadlock in __stack_map_get
                   https://syzkaller.appspot.com/bug?extid=dddd99ae26c656485d89
<8>  43      Yes   INFO: rcu detected stall in sys_bpf (9)
                   https://syzkaller.appspot.com/bug?extid=4fe86fa6110c580ea1f5
<9>  18      Yes   INFO: rcu detected stall in sys_syslog (2)
                   https://syzkaller.appspot.com/bug?extid=269f9ad9bc32451d5fb5
<10> 11      Yes   UBSAN: array-index-out-of-bounds in bpf_prog_select_runtime
                   https://syzkaller.appspot.com/bug?extid=d2a2c639d03ac200a4f1

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