[PATCH v3 2/5] lib: utils/irqchip: plic: Ensure no out-of-bound access in priority save/restore helpers

[Andreas Schwab]

On Dez 11 2022, Bin Meng wrote:

> diff --git a/platform/generic/allwinner/sun20i-d1.c b/platform/generic/allwinner/sun20i-d1.c
> index 18d330d..1f27575 100644
> --- a/platform/generic/allwinner/sun20i-d1.c
> +++ b/platform/generic/allwinner/sun20i-d1.c
> @@ -79,13 +79,13 @@ static u32 plic_threshold;
>  static void sun20i_d1_plic_save(void)
>  {
>  	fdt_plic_context_save(true, plic_sie, &plic_threshold);
> -	fdt_plic_priority_save(plic_priority);
> +	fdt_plic_priority_save(plic_priority, PLIC_SOURCES);
>  }
>  
>  static void sun20i_d1_plic_restore(void)
>  {
>  	thead_plic_restore();
> -	fdt_plic_priority_restore(plic_priority);
> +	fdt_plic_priority_restore(plic_priority, PLIC_SOURCES);
>  	fdt_plic_context_restore(true, plic_sie, plic_threshold);
>  }

That fails to update the size of the plic_priority arraay.

-- 
Andreas Schwab, schwab at linux-m68k.org
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