Hello:
This patch was applied to bluetooth/bluetooth-next.git (master)
by Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>:
On Thu, 4 Jan 2024 11:56:32 +0000 you wrote:
> While handling the HCI_EV_HARDWARE_ERROR event, if the underlying
> BT controller is not responding, the GPIO reset mechanism would
> free the hci_dev and lead to a use-after-free in hci_error_reset.
>
> Here's the call trace observed on a ChromeOS device with Intel AX201:
> queue_work_on+0x3e/0x6c
> __hci_cmd_sync_sk+0x2ee/0x4c0 [bluetooth <HASH:3b4a6>]
> ? init_wait_entry+0x31/0x31
> __hci_cmd_sync+0x16/0x20 [bluetooth <HASH:3b4a 6>]
> hci_error_reset+0x4f/0xa4 [bluetooth <HASH:3b4a 6>]
> process_one_work+0x1d8/0x33f
> worker_thread+0x21b/0x373
> kthread+0x13a/0x152
> ? pr_cont_work+0x54/0x54
> ? kthread_blkcg+0x31/0x31
> ret_from_fork+0x1f/0x30
>
> [...]
Here is the summary with links:
- Bluetooth: Avoid potential use-after-free in hci_error_reset
https://git.kernel.org/bluetooth/bluetooth-next/c/c6d011a4e7d3
You are awesome, thank you!
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