From 5b26195c696660df0ab3ad8bf767d5ed492f434a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ari=20Perkki=C3=B6?= <ari.perkkio@gmail.com>
Date: Sat, 7 Feb 2026 13:58:30 +0200
Subject: [PATCH 1/2] fix(module-runner): prevent crash on negative column in
 stacktrace

---
 packages/vite/src/module-runner/sourcemap/interceptor.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/vite/src/module-runner/sourcemap/interceptor.ts b/packages/vite/src/module-runner/sourcemap/interceptor.ts
index 8173158e97ad81..49b109615ac8aa 100644
--- a/packages/vite/src/module-runner/sourcemap/interceptor.ts
+++ b/packages/vite/src/module-runner/sourcemap/interceptor.ts
@@ -358,8 +358,8 @@ function wrapCallSite(frame: CallSite, state: State) {
   // from getScriptNameOrSourceURL() instead
   const source = frame.getFileName() || frame.getScriptNameOrSourceURL()
   if (source) {
-    const line = frame.getLineNumber() as number
-    const column = (frame.getColumnNumber() as number) - 1
+    const line = frame.getLineNumber() ?? 0
+    const column = (frame.getColumnNumber() ?? 1) - 1
 
     const position = mapSourcePosition({
       name: null,

From b62a076fe6493e60e6785bf53668ec456d44c62a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ari=20Perkki=C3=B6?= <ari.perkkio@gmail.com>
Date: Sat, 7 Feb 2026 22:31:18 +0200
Subject: [PATCH 2/2] test: failing test for negative column in stacktrace

---
 .../__tests__/server-source-maps.spec.ts      | 40 +++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/packages/vite/src/node/ssr/runtime/__tests__/server-source-maps.spec.ts b/packages/vite/src/node/ssr/runtime/__tests__/server-source-maps.spec.ts
index d3d7a3ffc925d8..6caeea61be17b1 100644
--- a/packages/vite/src/node/ssr/runtime/__tests__/server-source-maps.spec.ts
+++ b/packages/vite/src/node/ssr/runtime/__tests__/server-source-maps.spec.ts
@@ -1,5 +1,9 @@
+import { runInThisContext } from 'node:vm'
+import { resolve } from 'node:path'
 import { describe, expect } from 'vitest'
 import type { ViteDevServer } from '../../..'
+import type { ModuleRunnerContext } from '../../../../module-runner'
+import { ESModulesEvaluator } from '../../../../module-runner'
 import {
   createFixtureEditor,
   createModuleRunnerTester,
@@ -135,3 +139,39 @@ describe('module runner initialization', async () => {
     `)
   })
 })
+
+describe('module runner with node:vm executor', async () => {
+  class Evaluator extends ESModulesEvaluator {
+    async runInlinedModule(_: ModuleRunnerContext, __: string) {
+      // Mimics VitestModuleEvaluator
+      const initModule = runInThisContext(
+        '() => { throw new Error("example")}',
+        {
+          lineOffset: 0,
+          columnOffset: -100,
+          filename: resolve(import.meta.dirname, 'fixtures/a.ts'),
+        },
+      )
+
+      initModule()
+    }
+  }
+
+  const it = await createModuleRunnerTester(
+    {},
+    {
+      sourcemapInterceptor: 'prepareStackTrace',
+      evaluator: new Evaluator(),
+    },
+  )
+
+  it('should not crash when error stacktrace contains negative column', async ({
+    runner,
+  }) => {
+    const error = await runner.import('/fixtures/a.ts').catch((err) => err)
+
+    expect(() =>
+      error.stack.includes('.stack access triggers the bug'),
+    ).not.toThrow()
+  })
+})