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modules: make sure we don't overrun our array

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Limit the max number of params to 512 and make sure we don't collect
more.
This commit is contained in:
Wim Taymans 2023-12-11 12:53:40 +01:00
parent 6cda416e71
commit 971bc8a249
1 changed files with 18 additions and 13 deletions
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17
src/modules/module-echo-cancel.c
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@ -898,12 +898,14 @@ static const struct pw_stream_events sink_events = {
.param_changed = output_param_changed
};
#define MAX_PARAMS 512u
static int setup_streams(struct impl *impl)
{
int res;
uint32_t n_params, i;
uint32_t offsets[512];
const struct spa_pod *params[512];
uint32_t offsets[MAX_PARAMS];
const struct spa_pod *params[MAX_PARAMS];
struct spa_pod_dynamic_builder b;
impl->capture = pw_stream_new(impl->core,
@ -953,17 +955,18 @@ static int setup_streams(struct impl *impl)
n_params = 0;
spa_pod_dynamic_builder_init(&b, NULL, 0, 4096);
if (n_params < MAX_PARAMS) {
offsets[n_params++] = b.b.state.offset;
spa_format_audio_raw_build(&b.b, SPA_PARAM_EnumFormat, &impl->capture_info);
}
int nbr_of_external_props = spa_audio_aec_enum_props(impl->aec, 0, NULL);
if (nbr_of_external_props > 0) {
for (int i = 0; i < nbr_of_external_props; i++) {
if (n_params < MAX_PARAMS) {
offsets[n_params++] = b.b.state.offset;
spa_audio_aec_enum_props(impl->aec, i, &b.b);
}
}
if (n_params < MAX_PARAMS) {
offsets[n_params++] = b.b.state.offset;
spa_pod_builder_add_object(&b.b,
SPA_TYPE_OBJECT_PropInfo, SPA_PARAM_PropInfo,
@ -971,9 +974,11 @@ static int setup_streams(struct impl *impl)
SPA_PROP_INFO_description, SPA_POD_String("Path to WAV file"),
SPA_PROP_INFO_type, SPA_POD_String(impl->wav_path),
SPA_PROP_INFO_params, SPA_POD_Bool(true));
}
if (n_params < MAX_PARAMS) {
offsets[n_params++] = b.b.state.offset;
get_props_param(impl, &b.b);
}
for (i = 0; i < n_params; i++)
params[i] = spa_pod_builder_deref(&b.b, offsets[i]);