From 118e1b0b3370dd1c0da442901b486689efd1654b Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Fri, 2 Feb 2018 21:44:57 +0100 Subject: avcodec/utvideodec: Fix bytes left check in decode_frame() Fixes: out of array read Fixes: poc-2017.avi Found-by: GwanYeong Kim Signed-off-by: Michael Niedermayer --- libavcodec/utvideodec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'libavcodec/utvideodec.c') diff --git a/libavcodec/utvideodec.c b/libavcodec/utvideodec.c index 608c8c4998..1bcd14e74c 100644 --- a/libavcodec/utvideodec.c +++ b/libavcodec/utvideodec.c @@ -676,7 +676,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, for (j = 0; j < c->slices; j++) { slice_end = bytestream2_get_le32u(&gb); if (slice_end < 0 || slice_end < slice_start || - bytestream2_get_bytes_left(&gb) < slice_end) { + bytestream2_get_bytes_left(&gb) < slice_end + 1024LL) { av_log(avctx, AV_LOG_ERROR, "Incorrect slice size\n"); return AVERROR_INVALIDDATA; } -- cgit v1.2.3