From 1e7ff902f2f57b62e9db4fa0e5f24780d3140fa5 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Fri, 4 Sep 2015 01:18:13 +0200 Subject: [PATCH] avcodec/tta: Check init_get_bits8() for failure Fixes: CID1322319 Signed-off-by: Michael Niedermayer (cherry picked from commit f1593e4ca564cdb7f3194a9eee1dea16df41142d) Signed-off-by: Michael Niedermayer --- libavcodec/tta.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/libavcodec/tta.c b/libavcodec/tta.c index 01584d957e..81f5dddf69 100644 --- a/libavcodec/tta.c +++ b/libavcodec/tta.c @@ -123,6 +123,7 @@ static av_cold int tta_decode_init(AVCodecContext * avctx) TTAContext *s = avctx->priv_data; GetBitContext gb; int total_frames; + int ret; s->avctx = avctx; @@ -131,7 +132,10 @@ static av_cold int tta_decode_init(AVCodecContext * avctx) return AVERROR_INVALIDDATA; s->crc_table = av_crc_get_table(AV_CRC_32_IEEE_LE); - init_get_bits8(&gb, avctx->extradata, avctx->extradata_size); + ret = init_get_bits8(&gb, avctx->extradata, avctx->extradata_size); + if (ret < 0) + return ret; + if (show_bits_long(&gb, 32) == AV_RL32("TTA1")) { /* signature */ skip_bits_long(&gb, 32);