From: Paul Eggert <eggert@cs.ucla.edu>
Date: Mon, 15 May 2023 01:51:22 +0000 (-0700)
Subject: Fix ebrowse -f buffer overflow
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=3e3f34d71e9c3c6c943580dc822afed7a3b0a861;p=emacs.git

Fix ebrowse -f buffer overflow

* lib-src/ebrowse.c (main): Fix buffer overflow when several -f
options are given.  Found by GCC 13 -Wanalyzer-allocation-size.
---

diff --git a/lib-src/ebrowse.c b/lib-src/ebrowse.c
index 371fa6c938b..4b71f7447e0 100644
--- a/lib-src/ebrowse.c
+++ b/lib-src/ebrowse.c
@@ -3767,8 +3767,9 @@ main (int argc, char **argv)
 	  if (n_input_files == input_filenames_size)
 	    {
 	      input_filenames_size = max (10, 2 * input_filenames_size);
-	      input_filenames = (char **) xrealloc ((void *)input_filenames,
-						    input_filenames_size);
+	      input_filenames = xrealloc (input_filenames,
+					  (input_filenames_size
+					   * sizeof *input_filenames));
 	    }
           input_filenames[n_input_files++] = xstrdup (optarg);
           break;