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urisourcebin: Fix crash caused by use after free

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OutputSlotInfo doesn't hold ref of queue, so gst_bin_remove()
will free the queue memory.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/-/merge_requests/888>
This commit is contained in:
Seungha Yang 2020-10-22 19:16:42 +09:00 committed by GStreamer Merge Bot
parent e999318fd7
commit 5aa831223d
1 changed files with 1 additions and 2 deletions
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3
gst/playback/gsturisourcebin.c
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@ -2008,12 +2008,11 @@ free_output_slot (OutputSlotInfo * slot, GstURISourceBin * urisrc)
gst_element_set_locked_state (slot->queue, TRUE);
gst_element_set_state (slot->queue, GST_STATE_NULL);
remove_buffering_msgs (urisrc, GST_OBJECT_CAST (slot->queue));
gst_bin_remove (GST_BIN_CAST (urisrc), slot->queue);
gst_object_unref (slot->sinkpad);
remove_buffering_msgs (urisrc, GST_OBJECT_CAST (slot->queue));
/* deactivate and remove the srcpad */
gst_pad_set_active (slot->srcpad, FALSE);
gst_element_remove_pad (GST_ELEMENT_CAST (urisrc), slot->srcpad);