An issue was discovered in Samsung Mobile Processor Exynos Exynos 980, Exynos 850, Exynos 1080, Exynos 1280, Exynos 1380, Exynos 1330, Exynos 1480, Exynos W920, Exynos W930. In the function slsi_rx_blockack_ind(), there is no input validation check on a length coming from userspace, which can lead to a potential heap over-read.