mirrors/pipewire
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/pipewire/pipewire.git synced 2026-05-03 06:47:04 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

spa: add spa_alloca that does overflow and limit checks

Browse source 
Make a function like alloca but with overflow checks and a max
allocation size.

Use this function where we can and also make sure that all alloca calls
are in some way limited.
This commit is contained in:
Wim Taymans 2026-04-27 10:53:44 +02:00
parent a9f1ad414e
commit ed2c0ad4ee
10 changed files with 84 additions and 51 deletions
Download patch file Download diff file Expand all files Collapse all files

12
src/modules/module-sendspin-send.c
View file

@ -745,7 +745,8 @@ static int parse_player_v1_support(struct client *c, struct spa_json *payload)
spa_json_enter(payload, &it[0]);
while ((l = spa_json_next(&it[0], &v)) > 0) {
t = alloca(l+1);
if ((t = spa_alloca(1, l+1, 64)) == NULL)
continue;
spa_json_parse_stringn(v, l, t, l+1);
if (spa_streq(t, "volume"))
c->supported_commands |= COMMAND_VOLUME;
@ -766,12 +767,14 @@ static int handle_client_hello(struct client *c, struct spa_json *payload)
while ((l = spa_json_object_next(payload, key, sizeof(key), &v)) > 0) {
if (spa_streq(key, "client_id")) {
t = alloca(l+1);
if ((t = spa_alloca(1, l+1, 1024)) == NULL)
return -errno;
spa_json_parse_stringn(v, l, t, l+1);
pw_properties_set(c->props, "sendspin.client-id", t);
}
else if (spa_streq(key, "name")) {
t = alloca(l+1);
if ((t = spa_alloca(1, l+1, 1024)) == NULL)
return -errno;
spa_json_parse_stringn(v, l, t, l+1);
pw_properties_set(c->props, "sendspin.client-name", t);
}
@ -785,7 +788,8 @@ static int handle_client_hello(struct client *c, struct spa_json *payload)
spa_json_enter(payload, &it[0]);
while ((l = spa_json_next(&it[0], &v)) > 0) {
t = alloca(l+1);
if ((t = spa_alloca(1, l+1, 64)) == NULL)
continue;
spa_json_parse_stringn(v, l, t, l+1);
if (spa_streq(t, "player@v1"))