Re: [PATCH] pmu: fix pmu vmstate subsection list

[Greg Kurz]

On Tue, 16 Nov 2021 16:08:37 +0100
Laurent Vivier <lvivier@redhat.com> wrote:

> The subsection is not closed by a NULL marker so this can trigger
> a segfault when the pmu vmstate is saved.
> 
> This can be easily shown with:
> 
>   $ ./qemu-system-ppc64  -dump-vmstate vmstate.json
>   Segmentation fault (core dumped)
> 
> Fixes: d811d61fbc6c ("mac_newworld: add PMU device")
> Cc: mark.cave-ayland@ilande.co.uk
> Signed-off-by: Laurent Vivier <lvivier@redhat.com>
> ---

Reviewed-by: Greg Kurz <groug@kaod.org>

>  hw/misc/macio/pmu.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/hw/misc/macio/pmu.c b/hw/misc/macio/pmu.c
> index 4ad4f50e08c3..eb39c64694aa 100644
> --- a/hw/misc/macio/pmu.c
> +++ b/hw/misc/macio/pmu.c
> @@ -718,6 +718,7 @@ static const VMStateDescription vmstate_pmu = {
>      },
>      .subsections = (const VMStateDescription * []) {
>          &vmstate_pmu_adb,
> +        NULL
>      }
>  };
>  

This fix is so obvious that I guess you could carry it through the
trivial tree IMHO.