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Merge branch 'ab/plug-random-leaks'

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Double-free fix for a recently merged topic.

* ab/plug-random-leaks:
  diff.c: fix a double-free regression in a18d66cefb
  tests: demonstrate "show --word-diff --color-moved" regression
This commit is contained in:
Junio C Hamano
2022-03-23 14:09:31 -07:00
parent 1f390f2ad5 77e56d55ba
commit 361c2566c0
2 changed files with 19 additions and 4 deletions
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11
diff.c
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@ -800,6 +800,14 @@ static void append_emitted_diff_symbol(struct diff_options *o,
f->line = e->line ? xmemdupz(e->line, e->len) : NULL;
}
static void free_emitted_diff_symbols(struct emitted_diff_symbols *e)
{
if (!e)
return;
free(e->buf);
free(e);
}
struct moved_entry {
const struct emitted_diff_symbol *es;
struct moved_entry *next_line;
@ -2150,7 +2158,6 @@ static void diff_words_flush(struct emit_callback *ecbdata)
for (i = 0; i < wol->nr; i++)
free((void *)wol->buf[i].line);
free(wol->buf);
wol->nr = 0;
}
@ -2228,7 +2235,7 @@ static void free_diff_words_data(struct emit_callback *ecbdata)
{
if (ecbdata->diff_words) {
diff_words_flush(ecbdata);
free (ecbdata->diff_words->opt->emitted_symbols);
free_emitted_diff_symbols(ecbdata->diff_words->opt->emitted_symbols);
free (ecbdata->diff_words->opt);
free (ecbdata->diff_words->minus.text.ptr);
free (ecbdata->diff_words->minus.orig);