5.10-stable review patch. If anyone has any objections, please let me know.
------------------
From: Chenyuan Yang chenyuan0y@gmail.com
[ Upstream commit c8222ef6cf29dd7cad21643228f96535cc02b327 ]
soc_dev_attr->revision could be NULL, thus, a pointer check is added to prevent potential NULL pointer dereference. This is similar to the fix in commit 3027e7b15b02 ("ice: Fix some null pointer dereference issues in ice_ptp.c").
This issue is found by our static analysis tool.
Signed-off-by: Chenyuan Yang chenyuan0y@gmail.com Link: https://lore.kernel.org/r/20250212213518.69432-1-chenyuan0y@gmail.com Fixes: 3253b7b7cd44 ("soc: samsung: Add exynos chipid driver support") Cc: stable@vger.kernel.org Signed-off-by: Krzysztof Kozlowski krzysztof.kozlowski@linaro.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/soc/samsung/exynos-chipid.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/soc/samsung/exynos-chipid.c b/drivers/soc/samsung/exynos-chipid.c index a2d163a1b4e11..fb9e80b63b917 100644 --- a/drivers/soc/samsung/exynos-chipid.c +++ b/drivers/soc/samsung/exynos-chipid.c @@ -124,6 +124,8 @@ static int exynos_chipid_probe(struct platform_device *pdev)
soc_dev_attr->revision = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%x", soc_info.revision); + if (!soc_dev_attr->revision) + return -ENOMEM; soc_dev_attr->soc_id = product_id_to_soc_id(soc_info.product_id); if (!soc_dev_attr->soc_id) { pr_err("Unknown SoC\n");