Re: [PATCH v2 4/4] venus: hfi_parser: Add check to keep the number of codecs within range

[Vikash Garodia]

On 8/10/2023 5:03 PM, Bryan O'Donoghue wrote:
> On 10/08/2023 03:25, Vikash Garodia wrote:
>> +    if (hweight_long(core->dec_codecs) + hweight_long(core->enc_codecs) >
>> MAX_CODEC_NUM)
>> +        return;
>> +
> 
> Shouldn't this be >= ?
Not needed. Lets take a hypothetical case when core->dec_codecs has initial 16
(0-15) bits set and core->enc_codecs has next 16 bits (16-31) set. The bit count
would be 32. The codec loop after this check would run on caps array index 0-31.
I do not see a possibility for OOB access in this case.

> 
> struct hfi_plat_caps caps[MAX_CODEC_NUM];
> 
> ---
> bod
>