45 lines
1.6 KiB
Diff
45 lines
1.6 KiB
Diff
From c20eff779d932fd1c1dbac1e62397578d8861241 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <sebastian@centricular.com>
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Date: Mon, 30 Sep 2024 19:06:03 +0300
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Subject: [PATCH] matroskademux: Skip over laces directly when postprocessing
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the frame fails
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Otherwise NULL buffers might be handled afterwards.
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Thanks to Antonio Morales for finding and reporting the issue.
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Fixes GHSL-2024-249
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Fixes https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/3865
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Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/8057>
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---
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gst/matroska/matroska-demux.c | 12 ++++++++++++
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1 file changed, 12 insertions(+)
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diff --git a/gst/matroska/matroska-demux.c b/gst/matroska/matroska-demux.c
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index 4e546b439ccc..a35f79f02381 100644
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--- a/gst/matroska/matroska-demux.c
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+++ b/gst/matroska/matroska-demux.c
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@@ -4988,6 +4988,18 @@ gst_matroska_demux_parse_blockgroup_or_simpleblock (GstMatroskaDemux * demux,
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if (stream->postprocess_frame) {
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GST_LOG_OBJECT (demux, "running post process");
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ret = stream->postprocess_frame (GST_ELEMENT (demux), stream, &sub);
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+ if (ret != GST_FLOW_OK) {
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+ gst_clear_buffer (&sub);
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+ goto next_lace;
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+ }
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+
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+ if (sub == NULL) {
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+ GST_WARNING_OBJECT (demux,
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+ "Postprocessing buffer with timestamp %" GST_TIME_FORMAT
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+ " for stream %d failed", GST_TIME_ARGS (buffer_timestamp),
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+ stream_num);
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+ goto next_lace;
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+ }
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}
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/* At this point, we have a sub-buffer pointing at data within a larger
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--
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GitLab
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