The HIFI driver in Huawei P8 phones with software GRA-TL00 before GRA-TL00C01B220SP01, GRA-CL00 before GRA-CL00C92B220, GRA-CL10 before GRA-CL10C92B220, GRA-UL00 before GRA-UL00C00B220, GRA-UL10 before GRA-UL10C00B220 and Mate7 phones with software MT7-UL00 before MT7-UL00C17B354, MT7-TL10 before MT7-TL10C00B354, MT7-TL00 before MT7-TL00C01B354, and MT7-CL00 before MT7-CL00C92B354 allows remote attackers to cause a denial of service (invalid memory access and reboot) via unspecified vectors related to "input null pointer as parameter."