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patch 8.2.3741: using freed memory in open command

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Problem:    Using freed memory in open command.
Solution:   Make a copy of the current line.
This commit is contained in:
Bram Moolenaar
2021-12-05 12:06:24 +00:00
parent c7269f8627
commit e031fe90cf
3 changed files with 22 additions and 3 deletions
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10
src/ex_docmd.c
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@@ -6877,13 +6877,17 @@ ex_open(exarg_T *eap)
regmatch.regprog = vim_regcomp(eap->arg, magic_isset() ? RE_MAGIC : 0);
if (regmatch.regprog != NULL)
{
// make a copy of the line, when searching for a mark it might be
// flushed
char_u *line = vim_strsave(ml_get_curline());
regmatch.rm_ic = p_ic;
p = ml_get_curline();
if (vim_regexec(&regmatch, p, (colnr_T)0))
curwin->w_cursor.col = (colnr_T)(regmatch.startp[0] - p);
if (vim_regexec(&regmatch, line, (colnr_T)0))
curwin->w_cursor.col = (colnr_T)(regmatch.startp[0] - line);
else
emsg(_(e_nomatch));
vim_regfree(regmatch.regprog);
vim_free(line);
}
// Move to the NUL, ignore any other arguments.
eap->arg += STRLEN(eap->arg);