From 103f9c261a68299125b99c542e20f5541051d2c9 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sun, 15 Jun 2014 03:17:11 +0200 Subject: avcodec/indeo5: Fix infinite loop in skip_hdr_extension() Signed-off-by: Michael Niedermayer --- libavcodec/indeo5.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'libavcodec/indeo5.c') diff --git a/libavcodec/indeo5.c b/libavcodec/indeo5.c index a556fc787e..75f79ad9d3 100644 --- a/libavcodec/indeo5.c +++ b/libavcodec/indeo5.c @@ -289,14 +289,18 @@ static int decode_gop_header(IVI45DecContext *ctx, AVCodecContext *avctx) * * @param[in,out] gb the GetBit context */ -static inline void skip_hdr_extension(GetBitContext *gb) +static inline int skip_hdr_extension(GetBitContext *gb) { int i, len; do { len = get_bits(gb, 8); + if (8*len > get_bits_left(gb)) + return AVERROR_INVALIDDATA; for (i = 0; i < len; i++) skip_bits(gb, 8); } while(len); + + return 0; } -- cgit v1.2.3