r0 = socket$inet_udp(0x2, 0x2, 0x0)
ioctl$sock_inet_SIOCGARP(r0, 0x8954, &(0x7f0000000100)={{0x2, 0x0, @private}, {0x6, @local}, 0x2, {0x2, 0x0, @multicast1}, 'syz_tun\x00'})
ioctl$sock_inet_SIOCADDRT(r0, 0x890b, &(0x7f0000000040)={0x0, {0x2, 0x4e23, @multicast2}, {0x2, 0x4e21, @dev={0xac, 0x14, 0x14, 0xa}}, {0x2, 0x4e24, @broadcast}, 0x70, 0x0, 0x0, 0x0, 0x4, &(0x7f00000000c0)='lo\x00', 0xffff, 0x4, 0x9})