Re: [PATCH] clk: bcm: rpi: Fix an out-of-bound access to raspberrypi_clk_variants

[Xu Kuohai]

On 10/9/2022 1:07 AM, Stefan Wahren wrote:
> Hi Xu,
>
> Am 08.10.22 um 16:45 schrieb Xu Kuohai:
> > From: Xu Kuohai <xukuohai@xxxxxxxxxx>
> >
> > KASAN reports an out-of-bound access to raspberrypi_clk_variants[]:
> >
> > ==================================================================
> > BUG: KASAN: global-out-of-bounds in raspberrypi_clk_probe+0x1dc/0x690
> > Read of size 1 at addr ffffcc7116d615a0 by task kworker/u8:0/8
> >
> > CPU: 1 PID: 8 Comm: kworker/u8:0 Not tainted 6.0.0-rc3-00900-g08f4df4a3c53 raspberrypi#10
>
> this kernel is a little bit older and doesn't contain bc163555603e ("clk: bcm: rpi: Prevent out-of-bounds access").
>
> Can you please check Linux 6.0?

Yes, the kernel branch I used was not updated, and the KASAN warning was gone after switching to 6.0 kernel, thanks.

> Best regards