[FFmpeg-devel] [PATCH 1/5] avformat/flvdec: Check for EOF in AudioPacketTypeMultichannelConfig

From: Michael Niedermayer <michael@niedermayer.cc>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: [FFmpeg-devel] [PATCH 1/5] avformat/flvdec: Check for EOF in AudioPacketTypeMultichannelConfig
Date: Sun, 13 Jul 2025 03:10:26 +0200
Message-ID: <20250713011030.1156550-1-michael@niedermayer.cc> (raw)

Fixes: Infinite loop
Fixes: 427538726/clusterfuzz-testcase-minimized-ffmpeg_dem_FLV_fuzzer-6582567304495104

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 libavformat/flvdec.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libavformat/flvdec.c b/libavformat/flvdec.c
index ac681954cb7..a4fa0157512 100644
--- a/libavformat/flvdec.c
+++ b/libavformat/flvdec.c
@@ -1715,6 +1715,9 @@ retry_duration:
 
                 av_log(s, AV_LOG_DEBUG, "Set channel data from MultiChannel info.\n");
 
+                if (avio_feof(s->pb))
+                    return AVERROR_EOF;
+
                 goto next_track;
             }
         } else if (stream_type == FLV_STREAM_TYPE_VIDEO) {
-- 
2.49.0

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