[ Sasha's backport helper bot ] Hi, ✅ All tests passed successfully. No issues detected. No action required from the submitter. The upstream commit SHA1 provided is correct: 53dbe08504442dc7ba4865c09b3bbf5fe849681b WARNING: Author mismatch between patch and upstream commit: Backport author: <jianqi.ren.cn@xxxxxxxxxxxxx> Commit author: Fullway Wang<fullwaywang@xxxxxxxxxxx> Status in newer kernel trees: 6.13.y | Present (exact SHA1) 6.12.y | Present (exact SHA1) 6.6.y | Present (different SHA1: f066882293b5) Note: The patch differs from the upstream commit: --- 1: 53dbe08504442 ! 1: ffdac10bd60ef media: mtk-vcodec: potential null pointer deference in SCP @@ Metadata ## Commit message ## media: mtk-vcodec: potential null pointer deference in SCP + [ Upstream commit 53dbe08504442dc7ba4865c09b3bbf5fe849681b ] + 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@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Signed-off-by: Fullway Wang <fullwaywang@xxxxxxxxxxx> Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx> + [ To fix CVE-2024-40973, change the file path from drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw_scp.c + to drivers/media/platform/mediatek/vcodec/mtk_vcodec_fw_scp.c and minor conflict resolution ] + Signed-off-by: Jianqi Ren <jianqi.ren.cn@xxxxxxxxxxxxx> + Signed-off-by: He Zhe <zhe.he@xxxxxxxxxxxxx> - ## drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw_scp.c ## -@@ drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw_scp.c: struct mtk_vcodec_fw *mtk_vcodec_fw_scp_init(void *priv, enum mtk_vcodec_fw_use + ## drivers/media/platform/mediatek/vcodec/mtk_vcodec_fw_scp.c ## +@@ drivers/media/platform/mediatek/vcodec/mtk_vcodec_fw_scp.c: struct mtk_vcodec_fw *mtk_vcodec_fw_scp_init(struct mtk_vcodec_dev *dev) } - fw = devm_kzalloc(&plat_dev->dev, sizeof(*fw), GFP_KERNEL); + fw = devm_kzalloc(&dev->plat_dev->dev, sizeof(*fw), GFP_KERNEL); + if (!fw) + return ERR_PTR(-ENOMEM); fw->type = SCP; --- Results of testing on various branches: | Branch | Patch Apply | Build Test | |---------------------------|-------------|------------| | stable/linux-6.1.y | Success | Success |