6.6-stable review patch. If anyone has any objections, please let me know.
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From: Chenyuan Yang chenyuan0y@gmail.com
commit c8222ef6cf29dd7cad21643228f96535cc02b327 upstream.
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: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/soc/samsung/exynos-chipid.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/drivers/soc/samsung/exynos-chipid.c +++ b/drivers/soc/samsung/exynos-chipid.c @@ -130,6 +130,8 @@ static int exynos_chipid_probe(struct pl
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");