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Date:   Thu, 14 Apr 2022 12:44:13 +0200
From:   Greg KH <gregkh@linuxfoundation.org>
To:     Lee Jones <lee.jones@linaro.org>
Cc:     stable@vger.kernel.org,
        Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>,
        Felix Kuehling <Felix.Kuehling@amd.com>,
        Alex Deucher <alexander.deucher@amd.com>,
        Christian =?iso-8859-1?Q?K=F6nig?= <christian.koenig@amd.com>,
        David Airlie <airlied@linux.ie>,
        Daniel Vetter <daniel@ffwll.ch>, amd-gfx@lists.freedesktop.org,
        dri-devel@lists.freedesktop.org
Subject: Re: [PATCH 4.19 1/2] drm/amdgpu: Check if fd really is an amdgpu fd.
Message-ID: <Ylf6/aejnw+FWZUc@kroah.com>
References: <20220412153529.1173412-1-lee.jones@linaro.org>
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On Tue, Apr 12, 2022 at 04:35:28PM +0100, Lee Jones wrote:
> From: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
> 
> [ Upstream commit 021830d24ba55a578f602979274965344c8e6284 ]
> 
> Otherwise we interpret the file private data as drm & amdgpu data
> while it might not be, possibly allowing one to get memory corruption.
> 
> Cc: Felix Kuehling <Felix.Kuehling@amd.com>
> Cc: Alex Deucher <alexander.deucher@amd.com>
> Cc: "Christian König" <christian.koenig@amd.com>
> Cc: David Airlie <airlied@linux.ie>
> Cc: Daniel Vetter <daniel@ffwll.ch>
> Cc: amd-gfx@lists.freedesktop.org
> Cc: dri-devel@lists.freedesktop.org
> Signed-off-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
> Reviewed-by: Christian König <christian.koenig@amd.com>
> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
> Signed-off-by: Lee Jones <lee.jones@linaro.org>
> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu.h       |  2 ++
>  drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c   | 16 ++++++++++++++++
>  drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c | 10 +++++++---
>  3 files changed, 25 insertions(+), 3 deletions(-)

Both now queued up, thanks.

greg k-h