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opusdec: Set at most 64 channels to NONE position

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Thanks to Antonio Morales for finding and reporting the issue.

Fixes GHSL-2024-116
Fixes https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/3871

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/8037>
This commit is contained in:
Sebastian Dröge 2024-10-01 13:22:50 +03:00 committed by GStreamer Marge Bot
parent 537161868f
commit 2838374d6e
1 changed files with 2 additions and 2 deletions
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4
subprojects/gst-plugins-base/ext/opus/gstopusdec.c
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@ -440,12 +440,12 @@ gst_opus_dec_parse_header (GstOpusDec * dec, GstBuffer * buf)
posn = gst_opus_channel_positions[dec->n_channels - 1];
break;
default:{
gint i;
guint i, max_pos = MIN (dec->n_channels, 64);
GST_ELEMENT_WARNING (GST_ELEMENT (dec), STREAM, DECODE,
(NULL), ("Using NONE channel layout for more than 8 channels"));
for (i = 0; i < dec->n_channels; i++)
for (i = 0; i < max_pos; i++)
pos[i] = GST_AUDIO_CHANNEL_POSITION_NONE;
posn = pos;