avcodec/xan: Add basic input size check

Fixes: Timeout Fixes: 71739/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_XAN_WC3_fuzzer-6170301405134848

Michael Niedermayer committed 2 years ago

Commit 56bef2f1 parent 03050a01 file · +3 −0Browse files

Unified · Split

@@ -607,6 +607,9 @@ static int xan_decode_frame(AVCodecContext avctx, AVFrame frame, · 606 unmodified lines
607	607	return AVERROR_INVALIDDATA;
608	608	}
609	609
	610	+ if (buf_size < 9)
	611	+ return AVERROR_INVALIDDATA;
	612	+
610	613	if ((ret = ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF)) < 0)
611	614	return ret;
612	615

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