[FFmpeg-devel] [PATCH] avcodec/argo: Check packet size

* [FFmpeg-devel] [PATCH] avcodec/argo: Check packet size
@ 2022-02-27 10:26 Michael Niedermayer
  2022-03-07 23:31 ` Michael Niedermayer
  0 siblings, 1 reply; 2+ messages in thread
From: Michael Niedermayer @ 2022-02-27 10:26 UTC (permalink / raw)
  To: FFmpeg development discussions and patches

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@niedermayer.cc>
---
 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)
-- 
2.17.1

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