fix: if host is specified check whether it is valid

packages/vite/src/node/utils.ts

@@ -1,6 +1,7 @@
 import fs from 'node:fs'
 import os from 'node:os'
 import path from 'node:path'
+import net from 'node:net'
 import { exec } from 'node:child_process'
 import { createHash } from 'node:crypto'
 import { URL, URLSearchParams, fileURLToPath } from 'node:url'
@@ -865,6 +866,12 @@ export async function resolveHostname(
     // If passed --host in the CLI without arguments
     host = undefined // undefined typically means 0.0.0.0 or :: (listen on all IPs)
   } else {
+    // check if the host is valid
+    if (!net.isIP(optionsHost)) {
+      throw new Error(
+        `The address passed to --host is not a valid IP address: ${optionsHost}`,
+      )
+    }
     host = optionsHost
   }