[FFmpeg-devel] [PATCH 5/5] avformat/avs: Check if return code is representable

From: Michael Niedermayer <michael@niedermayer.cc>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: [FFmpeg-devel] [PATCH 5/5] avformat/avs: Check if return code is representable
Date: Wed, 20 Sep 2023 02:30:34 +0200
Message-ID: <20230920003034.7241-5-michael@niedermayer.cc> (raw)
In-Reply-To: <20230920003034.7241-1-michael@niedermayer.cc>

Fixes: leak
Fixes: 62164/clusterfuzz-testcase-minimized-ffmpeg_dem_AVS_fuzzer-6738814988320768

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 libavformat/avs.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libavformat/avs.c b/libavformat/avs.c
index ab47980a11c..19f03731573 100644
--- a/libavformat/avs.c
+++ b/libavformat/avs.c
@@ -140,6 +140,10 @@ static int avs_read_audio_packet(AVFormatContext * s, AVPacket * pkt)
         return 0;    /* this indicate EOS */
     if (ret < 0)
         return ret;
+    if (size != (int)size) {
+        av_packet_unref(pkt);
+        return AVERROR(EDOM);
+    }
 
     pkt->stream_index = avs->st_audio->index;
     pkt->flags |= AV_PKT_FLAG_KEY;
-- 
2.17.1

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