Patch 8.2.5024

[Bram Moolenaar]

Patch 8.2.5024
Problem: Using freed memory with "]d".
Solution: Copy the pattern before searching.
Files: src/normal.c, src/testdir/test_tagjump.vim


*** ../vim-8.2.5023/src/normal.c 2022-05-26 15:56:18.069351933 +0100
--- src/normal.c 2022-05-26 16:29:44.708375062 +0100
***************
*** 4464,4469 ****
--- 4464,4474 ----
clearop(cap->oap);
else
{
+ // Make a copy, if the line was changed it will be freed.
+ ptr = vim_strnsave(ptr, len);
+ if (ptr == NULL)
+ return;
+
find_pattern_in_path(ptr, 0, len, TRUE,
cap->count0 == 0 ? !isupper(cap->nchar) : FALSE,
((cap->nchar & 0xf) == ('d' & 0xf)) ? FIND_DEFINE : FIND_ANY,
***************
*** 4472,4477 ****
--- 4477,4483 ----
islower(cap->nchar) ? ACTION_SHOW : ACTION_GOTO,
cap->cmdchar == ']' ? curwin->w_cursor.lnum + 1 : (linenr_T)1,
(linenr_T)MAXLNUM);
+ vim_free(ptr);
curwin->w_set_curswant = TRUE;
}
}
*** ../vim-8.2.5023/src/testdir/test_tagjump.vim 2022-05-18 16:29:04.345637132 +0100
--- src/testdir/test_tagjump.vim 2022-05-26 16:24:35.580570656 +0100
***************
*** 1399,1404 ****
--- 1399,1410 ----
sil norm o0
sil! norm
bwipe!
+
+ new somefile
+ call setline(1, ['first line', '', '#define something 0'])
+ sil norm 0o0
+ sil! norm ]d
+ bwipe!
endfunc

" Test for [*, [/, ]* and ]/
*** ../vim-8.2.5023/src/version.c 2022-05-26 15:56:18.073351934 +0100
--- src/version.c 2022-05-26 16:31:32.884224729 +0100
***************
*** 736,737 ****
--- 736,739 ----
{ /* Add new patch number below this line */
+ /**/
+ 5024,
/**/

--
You were lucky. We lived for three months in a brown paper bag in a
septic tank. We used to have to get up at six o'clock in the morning,
clean the bag, eat a crust of stale bread, go to work down mill for
fourteen hours a day week in-week out. When we got home, our Dad
would thrash us to sleep with his belt!

/// Bram Moolenaar -- Br...@Moolenaar.net -- http://www.Moolenaar.net \\\
/// \\\
\\\ sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ ///
\\\ help me help AIDS victims -- http://ICCF-Holland.org ///