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SubjectRe: [PATCH v2] HID: mcp-2221: prevent UAF in delayed work
On Thu, 16 Feb 2023, Benjamin Tissoires wrote:

> If the device is plugged/unplugged without giving time for mcp_init_work()
> to complete, we might kick in the devm free code path and thus have
> unavailable struct mcp_2221 while in delayed work.
>
> Canceling the delayed_work item is enough to solve the issue, because
> cancel_delayed_work_sync will prevent the work item to requeue itself.
>
> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>

Acked-by: Jiri Kosina <jkosina@suse.cz>

Thanks Benjamin.

--
Jiri Kosina
SUSE Labs

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