[FFmpeg-cvslog] avcodec/argo: Check packet size

[Michael Niedermayer]

ffmpeg | branch: release/5.0 | Michael Niedermayer <michael at niedermayer.cc> | Sun Feb 27 00:59:25 2022 +0100| [849a20343dbf68ed5c9902bd53231b8a338b10e6] | committer: Michael Niedermayer

avcodec/argo: Check packet size

Fixes: Timeout
Fixes: 45052/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ARGO_fuzzer-6033489206575104

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
(cherry picked from commit 1bed27acefaab1b4c1813b8adc6468ca952a43f3)
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=849a20343dbf68ed5c9902bd53231b8a338b10e6
---

 libavcodec/argo.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libavcodec/argo.c b/libavcodec/argo.c
index 66f3d96480..58cc9984bc 100644
--- a/libavcodec/argo.c
+++ b/libavcodec/argo.c
@@ -607,6 +607,9 @@ static int decode_frame(AVCodecContext *avctx, void *data,
     uint32_t chunk;
     int ret;
 
+    if (avpkt->size < 4)
+        return AVERROR_INVALIDDATA;
+
     bytestream2_init(gb, avpkt->data, avpkt->size);
 
     if ((ret = ff_reget_buffer(avctx, frame, 0)) < 0)