Fix ruby-mode.el local command injection vulnerability (bug#60268)

* lisp/progmodes/ruby-mode.el
(ruby-find-library-file): Fix local command injection vulnerability.

(cherry picked from commit 9a3b08061feea14d6f37685ca1ab8801758bfd1c)

diff --git a/lisp/progmodes/ruby-mode.el b/lisp/progmodes/ruby-mode.el
index 72631a6557fc50ba1367066d423f5aa3e0265432..9b05b04a52cf333d54ef5b786643ab1324ccf510 100644 (file)
--- a/lisp/progmodes/ruby-mode.el
+++ b/lisp/progmodes/ruby-mode.el
@@ -1819,7 +1819,7 @@ or `gem' statement around point."
       (setq feature-name (read-string "Feature name: " init))))
   (let ((out
          (substring
-          (shell-command-to-string (concat "gem which " feature-name))
+          (shell-command-to-string (concat "gem which " (shell-quote-argument feature-name)))
           0 -1)))
     (if (string-match-p "\\`ERROR" out)
         (user-error "%s" out)