Re: [PATCH] Bluetooth: HCI: fix slab-use-after-free in cmd_sync_work

patchwork-bot+bluetooth
2024-04-25T16:30:33Z

Hello:

This patch was applied to bluetooth/bluetooth-next.git (master)
by Luiz Augusto von Dentz <luiz.von.dentz@intel.com>:

On Thu, 25 Apr 2024 00:11:28 -0400 you wrote:
> Hello, could you review the UAF bug and its fix?
> The stack trace is at the bottom.
>
> mgmt sync cmd could be used after freed in this scenario:
>
> set_local_name() ... cmd is allocated, set_name_complete() is
> queued in cmd_sync_work.
> hci_error_reset() ... hci device reset.
> hci_dev_close_sync() ... close hdev, at this point, cmd is freed.
> set_name_complete() ... callback from cmd_sync_work. cmd->param causes UAF.
>
> [...]

Here is the summary with links:
- Bluetooth: HCI: fix slab-use-after-free in cmd_sync_work
https://git.kernel.org/bluetooth/bluetooth-next/c/37dd04e4d594

You are awesome, thank you!
--
Deet-doot-dot, I am a bot.