r0 = socket$inet(0x2, 0xa, 0x0) r1 = creat(&(0x7f0000000040)='./file0\x00', 0x0) ioctl$FS_IOC_GETFSMAP(r1, 0xc0c0583b, &(0x7f0000000080)={0x0, 0xfdfdffff, 0x102, 0x0, '\x00', [{}, {0x800, 0x0, 0x400000000000000}], ['\x00']}) ioctl$sock_inet_SIOCGIFNETMASK(r0, 0x8916, &(0x7f00000001c0)={'syz_tun\x00', {0x2, 0x0, @empty}})