mirror of
https://gitlab.torproject.org/tpo/core/tor.git
synced 2024-11-24 04:13:28 +01:00
Handle empty/zero length encoded intro points more gracefully.
In theory these should never the triggered as the only caller now validates the parameters before this routine gets called.
This commit is contained in:
parent
7b5f558da4
commit
dc3cb00080
@ -4928,7 +4928,7 @@ rend_parse_introduction_points(rend_service_descriptor_t *parsed,
|
||||
size_t intro_points_encoded_size)
|
||||
{
|
||||
const char *current_ipo, *end_of_intro_points;
|
||||
smartlist_t *tokens;
|
||||
smartlist_t *tokens = NULL;
|
||||
directory_token_t *tok;
|
||||
rend_intro_point_t *intro;
|
||||
extend_info_t *info;
|
||||
@ -4937,8 +4937,10 @@ rend_parse_introduction_points(rend_service_descriptor_t *parsed,
|
||||
tor_assert(parsed);
|
||||
/** Function may only be invoked once. */
|
||||
tor_assert(!parsed->intro_nodes);
|
||||
tor_assert(intro_points_encoded);
|
||||
tor_assert(intro_points_encoded_size > 0);
|
||||
if (!intro_points_encoded || intro_points_encoded_size == 0) {
|
||||
log_warn(LD_REND, "Empty or zero size introduction point list");
|
||||
goto err;
|
||||
}
|
||||
/* Consider one intro point after the other. */
|
||||
current_ipo = intro_points_encoded;
|
||||
end_of_intro_points = intro_points_encoded + intro_points_encoded_size;
|
||||
@ -5042,8 +5044,10 @@ rend_parse_introduction_points(rend_service_descriptor_t *parsed,
|
||||
|
||||
done:
|
||||
/* Free tokens and clear token list. */
|
||||
SMARTLIST_FOREACH(tokens, directory_token_t *, t, token_clear(t));
|
||||
smartlist_free(tokens);
|
||||
if (tokens) {
|
||||
SMARTLIST_FOREACH(tokens, directory_token_t *, t, token_clear(t));
|
||||
smartlist_free(tokens);
|
||||
}
|
||||
if (area)
|
||||
memarea_drop_all(area);
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user