[syzbot] Monthly bpf report (May 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, 13 new issues were detected and 2 were fixed.
In total, 44 issues are still open and 238 have been fixed so far.

Some of the still happening issues:

Ref  Crashes Repro Title
<1>  52469   Yes   possible deadlock in console_flush_all (2)
                   https://syzkaller.appspot.com/bug?extid=f78380e4eae53c64125c
<2>  15516   Yes   possible deadlock in trie_delete_elem
                   https://syzkaller.appspot.com/bug?extid=9d95beb2a3c260622518
<3>  8620    Yes   possible deadlock in task_fork_fair
                   https://syzkaller.appspot.com/bug?extid=1a93ee5d329e97cfbaff
<4>  6553    Yes   KASAN: slab-out-of-bounds Read in btf_datasec_check_meta
                   https://syzkaller.appspot.com/bug?extid=cc32304f6487ebff9b70
<5>  1615    Yes   WARNING in skb_ensure_writable
                   https://syzkaller.appspot.com/bug?extid=0c4150bff9fff3bf023c
<6>  496     Yes   possible deadlock in sock_map_delete_elem
                   https://syzkaller.appspot.com/bug?extid=4ac2fe2b496abca8fa4b
<7>  241     Yes   WARNING in bpf_map_lookup_percpu_elem
                   https://syzkaller.appspot.com/bug?extid=dce5aae19ae4d6399986
<8>  224     No    KASAN: slab-use-after-free Read in htab_map_alloc (2)
                   https://syzkaller.appspot.com/bug?extid=061f58eec3bde7ee8ffa
<9>  137     Yes   KMSAN: uninit-value in ___bpf_prog_run (4)
                   https://syzkaller.appspot.com/bug?extid=853242d9c9917165d791
<10> 107     Yes   WARNING in sock_map_close
                   https://syzkaller.appspot.com/bug?extid=07a2e4a1a57118ef7355

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