linux-kernel - Re: [PATCH v3 2/2] drm/amdgpu: Fix integer overflow in amdgpu_cs

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Message-ID: <CADnq5_MfynMAPU8c-Lq1X_dcDOdRpjW6i=m-Qo8zsZZ=dO-62w@mail.gmail.com>
Date:   Thu, 27 Apr 2023 08:39:51 -0400
From:   Alex Deucher <alexdeucher@...il.com>
To:     whitehat002 whitehat002 <hackyzh002@...il.com>
Cc:     alexander.deucher@....com, Xinhui.Pan@....com,
        linux-kernel@...r.kernel.org, amd-gfx@...ts.freedesktop.org,
        sumit.semwal@...aro.org, linaro-mm-sig@...ts.linaro.org,
        dri-devel@...ts.freedesktop.org, daniel@...ll.ch,
        airlied@...il.com, christian.koenig@....com,
        linux-media@...r.kernel.org
Subject: Re: [PATCH v3 2/2] drm/amdgpu: Fix integer overflow in amdgpu_cs_pass1

As per my prior reply, it has been applied.

Thanks,

Alex

On Thu, Apr 27, 2023 at 8:39 AM whitehat002 whitehat002
<hackyzh002@...il.com> wrote:
>
> hello
> What is the current status of this patch, has it been applied?
>
>
> hackyzh002 <hackyzh002@...il.com> 于2023年4月19日周三 20:23写道：
> >
> > The type of size is unsigned int, if size is 0x40000000, there will
> > be an integer overflow, size will be zero after size *= sizeof(uint32_t),
> > will cause uninitialized memory to be referenced later.
> >
> > Signed-off-by: hackyzh002 <hackyzh002@...il.com>
> > ---
> >  drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
> > index 08eced097..89bcacc65 100644
> > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
> > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
> > @@ -192,7 +192,7 @@ static int amdgpu_cs_pass1(struct amdgpu_cs_parser *p,
> >         uint64_t *chunk_array_user;
> >         uint64_t *chunk_array;
> >         uint32_t uf_offset = 0;
> > -       unsigned int size;
> > +       size_t size;
> >         int ret;
> >         int i;
> >
> > --
> > 2.34.1
> >