Re: [PATCH v3] clk: rs9: Reserve 8 struct clk_hw slots for for 9FGV0841

[Stephen Boyd]

Quoting Marek Vasut (2026-01-21 16:26:38)
> The 9FGV0841 has 8 outputs and registers 8 struct clk_hw, make sure
> there are 8 slots for those newly registered clk_hw pointers, else
> there is going to be out of bounds write when pointers 4..7 are set
> into struct rs9_driver_data .clk_dif[4..7] field.
> 
> Since there are other structure members past this struct clk_hw
> pointer array, writing to .clk_dif[4..7] fields corrupts both
> the struct rs9_driver_data content and data around it, sometimes
> without crashing the kernel. However, the kernel does surely
> crash when the driver is unbound or during suspend.
> 
> Fix this, increase the struct clk_hw pointer array size to the
> maximum output count of 9FGV0841, which is the biggest chip that
> is supported by this driver.
> 
> Cc: stable@xxxxxxxxxxxxxxx
> Fixes: f0e5e1800204 ("clk: rs9: Add support for 9FGV0841")
> Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
> Tested-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
> Reported-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
> Closes: https://lore.kernel.org/CAMuHMdVyQpOBT+Ho+mXY07fndFN9bKJdaaWGn91WOFnnYErLyg@xxxxxxxxxxxxxx
> Signed-off-by: Marek Vasut <marek.vasut+renesas@xxxxxxxxxxx>
> ---

Applied to clk-next