File ffmpeg-4-CVE-2025-25473.patch of Package ffmpeg-4

From c08d300481b8ebb846cd43a473988fdbc6793d1b Mon Sep 17 00:00:00 2001
From: James Almer <jamrial@gmail.com>
Date: Fri, 17 Jan 2025 00:05:31 -0300
Subject: [PATCH] avformat/avformat: also clear FFFormatContext packet queue
 when closing a muxer

packet_buffer is used in mux.c, and if a muxing process fails at a point where
packets remained in said queue, they will leak.

Fixes ticket #11419

Signed-off-by: James Almer <jamrial@gmail.com>
---
 libavformat/avformat.c | 1 +
 1 file changed, 1 insertion(+)

--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -4478,6 +4478,7 @@
     av_dict_free(&s->internal->id3v2_meta);
     av_packet_free(&s->internal->pkt);
     av_packet_free(&s->internal->parse_pkt);
+    avpriv_packet_list_free(&s->internal->packet_buffer, &s->internal->packet_buffer_end);
     av_freep(&s->streams);
     flush_packet_queue(s);
     av_freep(&s->internal);