clamp suggest line height between 8 and 100, https://github.com/microsoft/vscode/issues/110078

src/vs/editor/common/config/editorOptions.ts

@@ -4260,7 +4260,7 @@ export const EditorOptions = {
 	suggestLineHeight: register(new EditorIntOption(
 		EditorOption.suggestLineHeight, 'suggestLineHeight',
 		0, 0, 1000,
-		{ markdownDescription: nls.localize('suggestLineHeight', "Line height for the suggest widget. When set to `0`, the value of `#editor.lineHeight#` is used.") }
+		{ markdownDescription: nls.localize('suggestLineHeight', "Line height for the suggest widget. When set to `0`, the value of `#editor.lineHeight#` is used. The minimum value is 8.") }
 	)),
 	suggestOnTriggerCharacters: register(new EditorBooleanOption(
 		EditorOption.suggestOnTriggerCharacters, 'suggestOnTriggerCharacters', true,

src/vs/editor/contrib/suggest/suggestWidget.ts

@@ -32,6 +32,7 @@ import { getAriaId, ItemRenderer } from './suggestWidgetRenderer';
 import { ResizableHTMLElement } from './resizable';
 import { EmbeddedCodeEditorWidget } from 'vs/editor/browser/widget/embeddedCodeEditorWidget';
 import { IPosition } from 'vs/editor/common/core/position';
+import { clamp } from 'vs/base/common/numbers';
 
 /**
  * Suggest widget colors
@@ -829,7 +830,7 @@ export class SuggestWidget implements IDisposable {
 
 	getLayoutInfo() {
 		const fontInfo = this.editor.getOption(EditorOption.fontInfo);
-		const itemHeight = this.editor.getOption(EditorOption.suggestLineHeight) || fontInfo.lineHeight;
+		const itemHeight = clamp(this.editor.getOption(EditorOption.suggestLineHeight) || fontInfo.lineHeight, 8, 1000);
 		const statusBarHeight = !this.editor.getOption(EditorOption.suggest).showStatusBar || this._state === State.Empty || this._state === State.Loading ? 0 : itemHeight;
 		const borderWidth = this._details.widget.borderWidth;
 		const borderHeight = 2 * borderWidth;