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Message-ID: <CAF6NKda1Jy_wfxaVqWt-o75f1BO-o4JXHY9HS9_JtJ2FHztMmQ@mail.gmail.com>
Date: Thu, 27 Apr 2023 15:44:39 +0800
From: whitehat002 whitehat002 <hackyzh002@...il.com>
To: alexander.deucher@....com
Cc: christian.koenig@....com, Xinhui.Pan@....com, airlied@...il.com,
daniel@...ll.ch, sumit.semwal@...aro.org,
amd-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
linux-kernel@...r.kernel.org, linux-media@...r.kernel.org,
linaro-mm-sig@...ts.linaro.org
Subject: Re: [PATCH v3 2/2] drm/amdgpu: Fix integer overflow in amdgpu_cs_pass1
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
>
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