[FFmpeg-devel] [PATCH 1/2] avformat/avr: Check sample rate

From: Michael Niedermayer <michael@niedermayer.cc>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: [FFmpeg-devel] [PATCH 1/2] avformat/avr: Check sample rate
Date: Sun, 23 Jul 2023 01:46:20 +0200
Message-ID: <20230722234621.28731-1-michael@niedermayer.cc> (raw)

Fixes: 54979/clusterfuzz-testcase-minimized-ffmpeg_dem_AVR_fuzzer-6681035461230592
Fixes: Timeout

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

diff --git a/libavformat/avr.c b/libavformat/avr.c
index 1cc4d56bfb..3fe8614b25 100644
--- a/libavformat/avr.c
+++ b/libavformat/avr.c
@@ -75,6 +75,9 @@ static int avr_read_header(AVFormatContext *s)
     avio_skip(s->pb, 20);
     avio_skip(s->pb, 64);
 
+    if (st->codecpar->sample_rate == 0)
+        return AVERROR_INVALIDDATA;
+
     st->codecpar->codec_id = ff_get_pcm_codec_id(bps, 0, 1, sign);
     if (st->codecpar->codec_id == AV_CODEC_ID_NONE) {
         avpriv_request_sample(s, "Bps %d and sign %d", bps, sign);
-- 
2.17.1

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