Re: [PATCH] drm/nouveau/secboot/acr: fix memory leak

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On Fri, Sep 7, 2018 at 8:02 PM, John Hubbard <jhubbard@xxxxxxxxxx> wrote:
> On 8/2/18 12:51 PM, Gustavo A. R. Silva wrote:
>> Hi all,
>>
>> Friendly ping! Who can take this?
>>
>> Thanks
>> --
>> Gustavo
>>
>> On 07/24/2018 08:27 AM, Gustavo A. R. Silva wrote:
>>> In case memory resources for *bl_desc* were allocated, release
>>> them before return.
>>>
>>> Addresses-Coverity-ID: 1472021 ("Resource leak")
>>> Fixes: 0d466901552a ("drm/nouveau/secboot/acr: Remove VLA usage")
>>> Signed-off-by: Gustavo A. R. Silva <gustavo@xxxxxxxxxxxxxx>
>>> ---
>>>  drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.c | 1 +
>>>  1 file changed, 1 insertion(+)
>>>
>>> diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.c b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.c
>>> index d02e183..5c14d6a 100644
>>> --- a/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.c
>>> +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/secboot/acr_r352.c
>>> @@ -801,6 +801,7 @@ acr_r352_load(struct nvkm_acr *_acr, struct nvkm_falcon *falcon,
>>>              bl = acr->hsbl_unload_blob;
>>>      } else {
>>>              nvkm_error(_acr->subdev, "invalid secure boot blob!\n");
>>> +            kfree(bl_desc);
>>>              return -EINVAL;
>>>      }
>>>
>>>
>
> Hi Gustavo,
>
> Seeing as how I've been working on this corner of Nouveau lately (don't ask, haha),
> I reviewed and also tested this. It looks good, you can add:
>
> Reviewed-by: John Hubbard <jhubbard@xxxxxxxxxx>

Ben can you take this?

Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx>

-Kees

-- 
Kees Cook
Pixel Security
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