[syzbot] Monthly bluetooth report (Sep 2023)

[syzbot]

Hello bluetooth maintainers/developers,

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

During the period, 2 new issues were detected and 1 were fixed.
In total, 20 issues are still open and 55 have been fixed so far.

Some of the still happening issues:

Ref  Crashes Repro Title
<1>  8940    Yes   possible deadlock in rfcomm_sk_state_change
                   https://syzkaller.appspot.com/bug?extid=d7ce59b06b3eb14fd218
<2>  4685    Yes   WARNING in hci_conn_timeout
                   https://syzkaller.appspot.com/bug?extid=2446dd3cb07277388db6
<3>  2847    Yes   possible deadlock in rfcomm_dlc_exists
                   https://syzkaller.appspot.com/bug?extid=b69a625d06e8ece26415
<4>  1418    Yes   BUG: sleeping function called from invalid context in hci_cmd_sync_submit
                   https://syzkaller.appspot.com/bug?extid=e7be5be00de0c3c2d782
<5>  1064    Yes   INFO: task can't die in __lock_sock
                   https://syzkaller.appspot.com/bug?extid=7d51f807c81b190a127d
<6>  224     Yes   WARNING in call_timer_fn
                   https://syzkaller.appspot.com/bug?extid=6fb78d577e89e69602f9
<7>  90      No    possible deadlock in hci_unregister_dev
                   https://syzkaller.appspot.com/bug?extid=c933391d8e4089f1f53e
<8>  65      Yes   KASAN: slab-use-after-free Read in hci_send_acl
                   https://syzkaller.appspot.com/bug?extid=a0c80b06ae2cb8895bc4
<9>  57      No    possible deadlock in discov_off
                   https://syzkaller.appspot.com/bug?extid=f047480b1e906b46a3f4
<10> 8       Yes   BUG: sleeping function called from invalid context in __hci_cmd_sync_sk
                   https://syzkaller.appspot.com/bug?extid=c715e1bd8dfbcb1ab176

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