Re: [PATCH v2] memory: brcmstb_dpfe: fix array index out of bounds

From: Krzysztof Kozlowski
Date: Sat Aug 22 2020 - 08:00:22 EST


On Fri, Aug 21, 2020 at 09:52:21AM -0700, Markus Mayer wrote:
> We would overrun the error_text array if we hit a TIMEOUT condition,
> because we were using the error code "ETIMEDOUT" (which is 110) as an
> array index.
>
> We fix the problem by correcting the array index and by providing a
> function to retrieve error messages rather than accessing the array
> directly. The function includes a bounds check that prevents the array
> from being overrun.
>
> This patch was prepared in response to
> https://lkml.org/lkml/2020/8/18/505.
>
> Signed-off-by: Markus Mayer <mmayer@xxxxxxxxxxxx>

Your Signed-off-by does not match From field. Please run
scripts/checkpatch on every patch you send.

I fixed it up, assuming markus.mayer@xxxxxxxxxxxx is the valid email
address.

> Acked-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
> ---
>
> Changes since v1:
> - Added link of the coverity report to the commit message.
> - Added Florian's ack.
> - Removed second "const" from get_error_text() return type

Florian was so kind to provide you with necessary tags - Fixes and
Reported-by. Always include them on resubmit of patches.

Thanks, applied.

Best regards,
Krzysztof