[syzbot] Monthly bluetooth report (Feb 2025)

[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, 6 new issues were detected and 0 were fixed.
In total, 58 issues are still open and 79 have already been fixed.

Some of the still happening issues:

Ref  Crashes Repro Title
<1>  27541   Yes   KASAN: slab-use-after-free Read in l2cap_unregister_user
                   https://syzkaller.appspot.com/bug?extid=14b6d57fb728e27ce23c
<2>  5842    Yes   WARNING in call_timer_fn
                   https://syzkaller.appspot.com/bug?extid=6fb78d577e89e69602f9
<3>  943     Yes   general protection fault in lock_sock_nested
                   https://syzkaller.appspot.com/bug?extid=d3ccfb78a0dc16ffebe3
<4>  702     Yes   general protection fault in skb_release_data (2)
                   https://syzkaller.appspot.com/bug?extid=ccfa5775bc1bda21ddd1
<5>  242     Yes   WARNING in hci_conn_timeout (2)
                   https://syzkaller.appspot.com/bug?extid=fc4b5b2477d4ca272907
<6>  214     Yes   KASAN: slab-use-after-free Read in force_devcd_write
                   https://syzkaller.appspot.com/bug?extid=bc71245e56f06e3127b7
<7>  182     Yes   WARNING: ODEBUG bug in hci_release_dev (2)
                   https://syzkaller.appspot.com/bug?extid=b170dbf55520ebf5969a
<8>  137     Yes   KASAN: slab-use-after-free Read in l2cap_recv_frame
                   https://syzkaller.appspot.com/bug?extid=5c915dc5dd417b83b348
<9>  132     No    WARNING in l2cap_chan_del
                   https://syzkaller.appspot.com/bug?extid=3272785b7a1fc9b510f6
<10> 115     Yes   BUG: sleeping function called from invalid context in lock_sock_nested (3)
                   https://syzkaller.appspot.com/bug?extid=55cd5225f71c5cff7f6f

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