Patch 8.2.4261
Problem: Accessing invalid memory when a regular expression checks the
Visual area while matching in a string.
Solution: Do not try matching the Visual area in a string.
Files: src/regexp.c, src/testdir/test_help.vim
*** ../vim-8.2.4260/src/regexp.c 2022-01-05 20:24:34.276005641 +0000
--- src/regexp.c 2022-01-30 16:41:32.350739976 +0000
***************
*** 1267,1274 ****
colnr_T cols;
colnr_T curswant;
! // Check if the buffer is the current buffer.
! if (rex.reg_buf != curbuf || VIsual.lnum == 0)
return FALSE;
if (VIsual_active)
--- 1267,1274 ----
colnr_T cols;
colnr_T curswant;
! // Check if the buffer is the current buffer and not using a string.
! if (rex.reg_buf != curbuf || VIsual.lnum == 0 || rex.reg_maxline == 0)
return FALSE;
if (VIsual_active)
*** ../vim-8.2.4260/src/testdir/test_help.vim 2022-01-03 12:53:20.662699885
+0000
--- src/testdir/test_help.vim 2022-01-30 16:40:38.583614348 +0000
***************
*** 1,6 ****
--- 1,7 ----
" Tests for :help
source check.vim
+ import './vim9.vim' as v9
func Test_help_restore_snapshot()
help
***************
*** 168,172 ****
--- 169,183 ----
endtry
endfunc
+ func Test_help_using_visual_match()
+ let lines =<< trim END
+ call setline(1, ' ')
+ /^
+ exe "normal \<C-V>\<C-V>"
+ h5\%V€]
+ END
+ call v9.CheckScriptFailure(lines, 'E149:')
+ endfunc
+
" vim: shiftwidth=2 sts=2 expandtab
*** ../vim-8.2.4260/src/version.c 2022-01-30 15:28:26.646294975 +0000
--- src/version.c 2022-01-30 16:11:17.545709897 +0000
***************
*** 752,753 ****
--- 752,755 ----
{ /* Add new patch number below this line */
+ /**/
+ 4261,
/**/
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