From 45da7a0e8f271b32202424358393aa249a939028 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sun, 21 Jul 2013 16:38:47 +0200 Subject: avcodec/ff_h264_decode_sei: Check SEI size Signed-off-by: Michael Niedermayer --- libavcodec/h264_sei.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'libavcodec/h264_sei.c') diff --git a/libavcodec/h264_sei.c b/libavcodec/h264_sei.c index 3003080..5e4321f 100644 --- a/libavcodec/h264_sei.c +++ b/libavcodec/h264_sei.c @@ -264,6 +264,11 @@ int ff_h264_decode_sei(H264Context *h){ if(h->avctx->debug&FF_DEBUG_STARTCODE) av_log(h->avctx, AV_LOG_DEBUG, "SEI %d len:%d\n", type, size); + if (size > get_bits_left(&h->gb) / 8) { + av_log(h->avctx, AV_LOG_ERROR, "SEI truncated\n"); + return AVERROR_INVALIDDATA; + } + switch(type){ case SEI_TYPE_PIC_TIMING: // Picture timing SEI if(decode_picture_timing(h) < 0) -- cgit v1.1