[syzbot] Monthly bluetooth report (Feb 2024)

[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 0 were fixed.
In total, 27 issues are still open and 59 have been fixed so far.

Some of the still happening issues:

Ref  Crashes Repro Title
<1>  17527   Yes   possible deadlock in rfcomm_sk_state_change
                   https://syzkaller.appspot.com/bug?extid=d7ce59b06b3eb14fd218
<2>  9390    Yes   possible deadlock in rfcomm_dlc_exists
                   https://syzkaller.appspot.com/bug?extid=b69a625d06e8ece26415
<3>  4897    Yes   WARNING in hci_conn_timeout
                   https://syzkaller.appspot.com/bug?extid=2446dd3cb07277388db6
<4>  565     Yes   WARNING in call_timer_fn
                   https://syzkaller.appspot.com/bug?extid=6fb78d577e89e69602f9
<5>  143     Yes   KASAN: slab-use-after-free Write in sco_sock_timeout
                   https://syzkaller.appspot.com/bug?extid=4c0d0c4cde787116d465
<6>  63      Yes   KASAN: slab-use-after-free Write in __sco_sock_close
                   https://syzkaller.appspot.com/bug?extid=dec4d528fb7a7c5d8ce3
<7>  34      Yes   KASAN: slab-use-after-free Write in sco_conn_del
                   https://syzkaller.appspot.com/bug?extid=6b9277cad941daf126a2
<8>  20      Yes   KMSAN: uninit-value in eir_get_service_data
                   https://syzkaller.appspot.com/bug?extid=5e132fbe94a9ede456ad
<9>  4       Yes   general protection fault in l2cap_chan_timeout (3)
                   https://syzkaller.appspot.com/bug?extid=f0908ddc8b64b86e81f2
<10> 2       No    possible deadlock in __flush_workqueue
                   https://syzkaller.appspot.com/bug?extid=da0a9c9721e36db712e8

---
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@xxxxxxxxxxxxxxxx.

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.