[Fix #9373]Fix indentation style tabs infinite loop

CHANGELOG.md

@@ -5366,3 +5366,4 @@
 [@ohbarye]: https://github.com/ohbarye
 [@magneland]: https://github.com/magneland
 [@k-karen]: https://github.com/k-karen
+[@joeyparis]: https://github.com/joeyparis

changelog/fix_indentation_style_tabs_infinite_loop.md

@@ -0,0 +1 @@
+* [#9373](https://github.com/rubocop-hq/rubocop/issues/9373): Fix Identation/Style infinite loop when its IdentationWidth attribute is set to anything but 1. ([@joeyparis][])

lib/rubocop/cop/layout/indentation_style.rb

@@ -6,6 +6,11 @@ module Layout
       # This cop checks that the indentation method is consistent.
       # Either tabs only or spaces only are used for indentation.
       #
+      # The `IndentationWidth` attribute is ignored when `EnforcedStyle` is `tabs`.
+      #
+      # When `EnforcedStyle` is set to `tabs` it is recommended to also set
+      # `Layout/IndentationWidth`'s `Width` attribute to `1`.
+      #
       # @example EnforcedStyle: spaces (default)
       #   # bad
       #   # This example uses a tab to indent bar.
@@ -82,7 +87,7 @@ def autocorrect_lambda_for_tabs(range)
         def autocorrect_lambda_for_spaces(range)
           lambda do |corrector|
             corrector.replace(range, range.source.gsub(/\A\s+/) do |match|
-              "\t" * (match.size / configured_indentation_width)
+              "\t" * match.size
             end)
           end
         end