[syzbot] Monthly bluetooth report (Jul 2026)

[syzbot] Monthly bluetooth report (Jul 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, 1 new issues were detected and 0 were fixed.
In total, 21 issues are still open and 104 have already been fixed.
There are also 7 low-priority issues.

Some of the still happening issues:

Ref  Crashes Repro Title
<1>  9439    Yes   WARNING in call_timer_fn
                   https://syzkaller.appspot.com/bug?extid=6fb78d577e89e69602f9
<2>  586     Yes   WARNING: ODEBUG bug in hci_release_dev (2)
                   https://syzkaller.appspot.com/bug?extid=b170dbf55520ebf5969a
<3>  374     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>  107     Yes   KASAN: slab-use-after-free Read in l2cap_sock_ready_cb (2)
                   https://syzkaller.appspot.com/bug?extid=9265e754091c2d27ea29
<7>  58      No    WARNING in l2cap_chan_send
                   https://syzkaller.appspot.com/bug?extid=b6919040d9958e2fc1ae
<8>  4       No    WARNING in hci_send_cmd (4)
                   https://syzkaller.appspot.com/bug?extid=00f5a866124dc44cce14
<9>  3085    No    KASAN: vmalloc-out-of-bounds Read in kcov_remote_start
                   https://syzkaller.appspot.com/bug?extid=8a173e13208949931dc7
<10> 191     Yes   KASAN: slab-use-after-free Read in bt_accept_unlink
                   https://syzkaller.appspot.com/bug?extid=a1595e656a83ea5b78eb

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