[syzbot] Monthly bluetooth report (Jun 2026)

[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, 4 new issues were detected and 0 were fixed.
In total, 27 issues are still open and 102 have already been fixed.
There are also 8 low-priority issues.

Some of the still happening issues:

Ref Crashes Repro Title
<1> 9301 Yes WARNING in call_timer_fn
https://syzkaller.appspot.com/bug?extid=6fb78d577e89e69602f9
<2> 564 Yes WARNING: ODEBUG bug in hci_release_dev (2)
https://syzkaller.appspot.com/bug?extid=b170dbf55520ebf5969a
<3> 367 No WARNING in l2cap_chan_del
https://syzkaller.appspot.com/bug?extid=3272785b7a1fc9b510f6
<4> 345 Yes KASAN: wild-memory-access Read in l2cap_connect_cfm
https://syzkaller.appspot.com/bug?extid=0e4ebcc970728e056324
<5> 203 Yes KASAN: slab-use-after-free Read in l2cap_sock_new_connection_cb
https://syzkaller.appspot.com/bug?extid=cdae834448ec8c3602fe
<6> 111 Yes INFO: task hung in hci_cmd_sync_clear (3)
https://syzkaller.appspot.com/bug?extid=217e3f1283cafe80586e
<7> 97 Yes KASAN: slab-use-after-free Read in l2cap_sock_ready_cb (2)
https://syzkaller.appspot.com/bug?extid=9265e754091c2d27ea29
<8> 33 No WARNING: held lock freed in bt_accept_dequeue
https://syzkaller.appspot.com/bug?extid=4c5f0c6f8cc60159bdbf
<9> 165 Yes KASAN: slab-use-after-free Read in bt_accept_unlink
https://syzkaller.appspot.com/bug?extid=a1595e656a83ea5b78eb
<10> 91 Yes general protection fault in l2cap_chan_timeout (3)
https://syzkaller.appspot.com/bug?extid=f0908ddc8b64b86e81f2

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