From: Michael Niedermayer <michael@niedermayer.cc>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: [FFmpeg-devel] [PATCH] avformat/rawvideodec: check packet size
Date: Thu, 6 Jan 2022 09:42:03 +0100
Message-ID: <20220106084203.27906-1-michael@niedermayer.cc> (raw)
Fixes: division by zero
Fixes: 43347/clusterfuzz-testcase-minimized-ffmpeg_dem_V210X_fuzzer-5846911637127168
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
libavformat/rawvideodec.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/libavformat/rawvideodec.c b/libavformat/rawvideodec.c
index 68547fc50ff..7581ba2c7d2 100644
--- a/libavformat/rawvideodec.c
+++ b/libavformat/rawvideodec.c
@@ -100,6 +100,8 @@ static int rawvideo_read_header(AVFormatContext *ctx)
if (packet_size < 0)
return packet_size;
}
+ if (packet_size == 0)
+ return AVERROR_INVALIDDATA;
st->codecpar->format = pix_fmt;
ctx->packet_size = packet_size;
--
2.17.1
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next reply other threads:[~2022-01-06 8:43 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-06 8:42 Michael Niedermayer [this message]
2022-01-06 9:05 ` lance.lmwang
2022-01-06 9:52 ` Andreas Rheinhardt
2022-01-07 16:51 Michael Niedermayer
2022-01-08 12:27 ` lance.lmwang
2022-01-10 9:17 ` Andreas Rheinhardt
2022-01-13 18:44 ` Michael Niedermayer
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