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media: mtk-vcodec: potential null pointer deference in SCP

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[ Upstream commit 53dbe08504 ]

The return value of devm_kzalloc() needs to be checked to avoid
NULL pointer deference. This is similar to CVE-2022-3113.

Link: https://lore.kernel.org/linux-media/PH7PR20MB5925094DAE3FD750C7E39E01BF712@PH7PR20MB5925.namprd20.prod.outlook.com
Signed-off-by: Fullway Wang <fullwaywang@outlook.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Fullway Wang 2024-01-18 02:35:06 +00:00 committed by Greg Kroah-Hartman
parent ad893d00c2
commit 3a693c7e24
1 changed files with 2 additions and 0 deletions
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2
drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw_scp.c
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@ -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;