regexp: Fix invalid multibyte reads at end of strings

Close #3150
2025-10-08 19:06:31 +00:00 · 2015-09-08 13:03:09 -03:00
parent c708061a5a
commit 0a116c828d
2 changed files with 2 additions and 1 deletions
--- a/src/nvim/search.c
+++ b/src/nvim/search.c
@@ -653,7 +653,7 @@ int searchit(
              }
              if (matchcol == 0 && (options & SEARCH_START))
                break;
-              if (ptr[matchcol] == NUL
+              if (STRLEN(ptr) <= (size_t)matchcol || ptr[matchcol] == NUL
                  || (nmatched = vim_regexec_multi(&regmatch,
                          win, buf, lnum + matchpos.lnum,
                          matchcol,