From 1bed27acefaab1b4c1813b8adc6468ca952a43f3 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sun, 27 Feb 2022 00:59:25 +0100 Subject: [PATCH] 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 --- 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)