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media: mediatek: vcodec: return EINVAL if plane is too small

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Modify vb2ops_vdec_buf_prepare to return EINVAL if the size of the plane
is less than the size of the image. Currently we just log an error and
return 0 anyway, which may cause a buffer overrun bug.

Signed-off-by: Justin Green <greenjustin@chromium.org>
Suggested-by: Andres Calderon Jaramillo <andrescj@chromium.org>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
This commit is contained in:
Justin Green 2022-06-15 16:38:27 +01:00 committed by Mauro Carvalho Chehab
parent d4de27a9b1
commit f5caaa47f5
1 changed files with 1 additions and 0 deletions
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drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec.c
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@ -797,6 +797,7 @@ int vb2ops_vdec_buf_prepare(struct vb2_buffer *vb)
mtk_v4l2_err("data will not fit into plane %d (%lu < %d)",
i, vb2_plane_size(vb, i),
q_data->sizeimage[i]);
return -EINVAL;
}
if (!V4L2_TYPE_IS_OUTPUT(vb->type))
vb2_set_plane_payload(vb, i, q_data->sizeimage[i]);