Re: [PATCH v3] usbip: vudc: Prevent transfer timer rearm during teardown

[Greg KH]

On Thu, Sep 24, 2026 at 09:51:44PM +0000, mhun512@xxxxxxxxx wrote:
> Commit d96209626a29 ("usbip: vudc: Fix use after free bug in
> vudc_remove due to race condition") deletes the timer before
> usb_del_gadget_udc() stops the receive thread.  v_kick_timer() can rearm
> it even in VUDC_TR_STOPPED, leaving v_timer() to use freed vudc.
> 
> Use timer_shutdown_sync() to reject later rearms.  Replace the
> inaccurate blanket lock comment with __must_hold(&udc->lock) on
> v_start_timer() and v_kick_timer(); v_init_timer() and v_stop_timer() run
> unlocked.

That is two different things you are doing here, so this should be a
patch series of 2 patches, right?

thanks,

greg k-h