Hello:
This patch was applied to bluetooth/bluetooth-next.git (master)
by Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>:
On Mon, 12 Sep 2022 01:21:42 +0900 you wrote:
> syzbot is again reporting attempt to cancel uninitialized work
> at mgmt_index_removed() [1], for setting of HCI_MGMT flag from
> mgmt_init_hdev() from hci_mgmt_cmd() from hci_sock_sendmsg() can
> race with testing of HCI_MGMT flag from mgmt_index_removed() from
> hci_sock_bind() due to lack of serialization via hci_dev_lock().
>
> Since mgmt_init_hdev() is called with mgmt_chan_list_lock held, we can
> safely split hci_dev_test_and_set_flag() into hci_dev_test_flag() and
> hci_dev_set_flag(). Thus, in order to close this race, set HCI_MGMT flag
> after INIT_DELAYED_WORK() completed.
>
> [...]
Here is the summary with links:
- Bluetooth: avoid hci_dev_test_and_set_flag() in mgmt_init_hdev()
https://git.kernel.org/bluetooth/bluetooth-next/c/f74ca25d6d66
You are awesome, thank you!
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