[<prev] [next>] [day] [month] [year] [list]
Message-ID:
<PH7PR20MB5925094DAE3FD750C7E39E01BF712@PH7PR20MB5925.namprd20.prod.outlook.com>
Date: Thu, 18 Jan 2024 10:35:06 +0800
From: Fullway Wang <fullwaywang@...look.com>
To: tiffany.lin@...iatek.com,
andrew-ct.chen@...iatek.com,
yunfei.dong@...iatek.com
Cc: fullwaywang@...cent.com,
linux-media@...r.kernel.org,
linux-kernel@...r.kernel.org,
Fullway Wang <fullwaywang@...look.com>
Subject: [PATCH] media: mtk-vcodec: potential null pointer deference in SCP
The return value of devm_kzalloc() needs to be checked to avoid
NULL pointer deference. This is similar to CVE-2022-3113.
Signed-off-by: Fullway Wang <fullwaywang@...look.com>
---
.../media/platform/mediatek/vcodec/common/mtk_vcodec_fw_scp.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw_scp.c b/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw_scp.c
index 6bbe55de6ce9..ff23b225db70 100644
--- a/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw_scp.c
+++ b/drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw_scp.c
@@ -79,6 +79,8 @@ struct mtk_vcodec_fw *mtk_vcodec_fw_scp_init(void *priv, enum mtk_vcodec_fw_use
}
fw = devm_kzalloc(&plat_dev->dev, sizeof(*fw), GFP_KERNEL);
+ if (!fw)
+ return ERR_PTR(-ENOMEM);
fw->type = SCP;
fw->ops = &mtk_vcodec_rproc_msg;
fw->scp = scp;
--
2.39.3 (Apple Git-145)
Powered by blists - more mailing lists