Re: [PATCH] bus: mhi: core: Validate channel ID when processing command completions

[Hemant Kumar]

On 4/26/21 4:58 PM, Bhaumik Bhatt wrote:
> MHI reads the channel ID from the event ring element sent by the
> device which can be any value between 0 and 255. In order to
> prevent any out of bound accesses, add a check against the maximum
> number of channels supported by the controller and those channels
> not configured yet so as to skip processing of that event ring
> element.
>
> Fixes: 1d3173a3bae7 ("bus: mhi: core: Add support for processing events from client device")
> Signed-off-by: Bhaumik Bhatt <bbhatt@xxxxxxxxxxxxxx>
> ---
Reviewed-by: Hemant Kumar <hemantk@xxxxxxxxxxxxxx>

--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project