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pw-cat: improve channel checks

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Make sure we don't use too many channels.
This commit is contained in:
Wim Taymans 2025-10-24 10:42:05 +02:00
parent aa0272f6f3
commit d18670d7bb
1 changed files with 14 additions and 2 deletions
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16
src/tools/pw-cat.c
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@ -2348,10 +2348,22 @@ int main(int argc, char *argv[])
.rate = data.rate, .rate = data.rate,
.channels = data.channels); .channels = data.channels);
if (data.channels > MAX_CHANNELS) {
fprintf(stderr, "error: too many channels %d > %d\n",
data.channels, MAX_CHANNELS);
goto error_bad_file;
}
if (data.channelmap.n_channels) { if (data.channelmap.n_channels) {
uint32_t i, n_pos = SPA_MIN(data.channels, SPA_N_ELEMENTS(info.position)); if (data.channels > MAX_CHANNELS) {
for (i = 0; i < n_pos; i++) fprintf(stderr, "error: too many channels in channelmap %d > %d\n",
data.channelmap.n_channels, MAX_CHANNELS);
goto error_bad_file;
}
uint32_t i;
for (i = 0; i < data.channelmap.n_channels; i++)
info.position[i] = data.channelmap.channels[i]; info.position[i] = data.channelmap.channels[i];
for (; i < data.channels; i++)
info.position[i] = SPA_AUDIO_CHANNEL_AUX0 + i;
} }
params[n_params++] = spa_format_audio_raw_build(&b, SPA_PARAM_EnumFormat, &info); params[n_params++] = spa_format_audio_raw_build(&b, SPA_PARAM_EnumFormat, &info);
break; break;