Dan Carpenter <dan.carpenter@xxxxxxxxxx> wrote:
> The "ev->traffic_class" and "reply->ac" variables come from the network
> and they're used as an offset into the wmi->stream_exist_for_ac[] array.
> Those variables are u8 so they can be 0-255 but the stream_exist_for_ac[]
> array only has WMM_NUM_AC (4) elements. We need to add a couple bounds
> checks to prevent array overflows.
>
> I also modified one existing check from "if (traffic_class > 3) {" to
> "if (traffic_class >= WMM_NUM_AC) {" just to make them all consistent.
>
> Fixes: bdcd81707973 (" Add ath6kl cleaned up driver")
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
> Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxx>
Patch applied to ath-next branch of ath.git, thanks.
5d6751eaff67 ath6kl: add some bounds checking
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https://patchwork.kernel.org/patch/10885299/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
