[syzbot] Monthly bpf report (Jul 2024)

[syzbot] Monthly bpf report (Jul 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, 5 new issues were detected and 2 were fixed.
In total, 52 issues are still open and 256 have been fixed so far.

Some of the still happening issues:

Ref  Crashes Repro Title
<1>  18263   Yes   possible deadlock in trie_delete_elem
                   https://syzkaller.appspot.com/bug?extid=9d95beb2a3c260622518
<2>  10705   Yes   KASAN: slab-out-of-bounds Read in btf_datasec_check_meta
                   https://syzkaller.appspot.com/bug?extid=cc32304f6487ebff9b70
<3>  8741    Yes   possible deadlock in task_fork_fair
                   https://syzkaller.appspot.com/bug?extid=1a93ee5d329e97cfbaff
<4>  1396    Yes   WARNING in bpf_map_lookup_percpu_elem
                   https://syzkaller.appspot.com/bug?extid=dce5aae19ae4d6399986
<5>  966     Yes   WARNING in format_decode (3)
                   https://syzkaller.appspot.com/bug?extid=e2c932aec5c8a6e1d31c
<6>  803     Yes   possible deadlock in __bpf_ringbuf_reserve
                   https://syzkaller.appspot.com/bug?extid=850aaf14624dc0c6d366
<7>  144     Yes   possible deadlock in __queue_map_get
                   https://syzkaller.appspot.com/bug?extid=8bdfc2c53fb2b63e1871
<8>  110     Yes   WARNING in __xdp_reg_mem_model
                   https://syzkaller.appspot.com/bug?extid=f534bd500d914e34b59e
<9>  108     Yes   BUG: unable to handle kernel NULL pointer dereference in sk_msg_recvmsg
                   https://syzkaller.appspot.com/bug?extid=84f695756ed0c4bb3aba
<10> 84      No    possible deadlock in trie_update_elem
                   https://syzkaller.appspot.com/bug?extid=ea624e536fee669a05cf

---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@googlegroups.com.

To disable reminders for individual bugs, reply with the following command:
#syz set <Ref> no-reminders

To change bug's subsystems, reply with:
#syz set <Ref> subsystems: new-subsystem

You may send multiple commands in a single email message.