The hci_conn_failed() function currently calls hci_connect_cfm(), which
indirectly leads to the allocation of an l2cap_conn struct in
l2cap_conn_add().
This operation results in a memory leak, as the l2cap_conn structure
becomes unreferenced.
To address this issue and prevent the memory leak, this patch modifies
hci_conn_failed() to replace the call to hci_connect_cfm() with a
call to hci_disconn_cfm().
Fixes: 9b3628d79b46 ("Bluetooth: hci_sync: Cleanup hci_conn if it cannot be aborted")
Reported-by: syzbot+39ec16ff6cc18b1d066d@xxxxxxxxxxxxxxxxxxxxxxxxx
Closes: https://syzkaller.appspot.com/bug?extid=39ec16ff6cc18b1d066d
Signed-off-by: Yuran Pereira <yuran.pereira@xxxxxxxxxxx>
---
net/bluetooth/hci_conn.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 7a6f20338db8..1d2d03b4a98a 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -1248,7 +1248,7 @@ void hci_conn_failed(struct hci_conn *conn, u8 status)
}
conn->state = BT_CLOSED;
- hci_connect_cfm(conn, status);
+ hci_disconn_cfm(conn, status);
hci_conn_del(conn);
}
--
2.25.1
