[PATCH] ASoC: sof_es8336: fix possible use-after-free in sof_es8336_remove()

[Mark Brown]

On Mon, 5 Dec 2022 22:37:21 +0800, Yang Yingliang wrote:
> sof_es8336_remove() calls cancel_delayed_work(). However, that
> function does not wait until the work function finishes. This
> means that the callback function may still be running after
> the driver's remove function has finished, which would result
> in a use-after-free.
> 
> Fix by calling cancel_delayed_work_sync(), which ensures that
> the work is properly cancelled, no longer running, and unable
> to re-schedule itself.
> 
> [...]

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next

Thanks!

[1/1] ASoC: sof_es8336: fix possible use-after-free in sof_es8336_remove()
      commit: 1b41beaa7a58467505ec3023af8aad74f878b888

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

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Thanks,
Mark