6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Irui Wang <irui.wang@xxxxxxxxxxxx>
[ Upstream commit 19e2e01f30b5d2b448b5db097130486ea95af36f ]
Handle invalid encoder vsi in vpu_enc_init to ensure the encoder
vsi is valid for future use.
Fixes: 1972e32431ed ("media: mediatek: vcodec: Fix possible invalid memory access for encoder")
Signed-off-by: Irui Wang <irui.wang@xxxxxxxxxxxx>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/media/platform/mediatek/vcodec/encoder/venc_vpu_if.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/media/platform/mediatek/vcodec/encoder/venc_vpu_if.c b/drivers/media/platform/mediatek/vcodec/encoder/venc_vpu_if.c
index ae6290d28f8e9..84ad1cc6ad171 100644
--- a/drivers/media/platform/mediatek/vcodec/encoder/venc_vpu_if.c
+++ b/drivers/media/platform/mediatek/vcodec/encoder/venc_vpu_if.c
@@ -154,6 +154,11 @@ int vpu_enc_init(struct venc_vpu_inst *vpu)
return -EINVAL;
}
+ if (IS_ERR_OR_NULL(vpu->vsi)) {
+ mtk_venc_err(vpu->ctx, "invalid venc vsi");
+ return -EINVAL;
+ }
+
return 0;
}
--
2.42.0
