ffmpeg | branch: release/2.5 | Michael Niedermayer <mich...@niedermayer.cc> | Mon Aug 24 13:04:38 2015 +0200| [221abc1ef63ae962e57bc98801f61b6f580d17ae] | committer: Michael Niedermayer
avformat/hevc: Check num_long_term_ref_pics_sps to avoid potentially long loops Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> (cherry picked from commit ee155c18a2c50b339ba5f6f223fbb6dc343fd471) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=221abc1ef63ae962e57bc98801f61b6f580d17ae --- libavformat/hevc.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavformat/hevc.c b/libavformat/hevc.c index 9932d92..f403e1c 100644 --- a/libavformat/hevc.c +++ b/libavformat/hevc.c @@ -566,6 +566,8 @@ static int hvcc_parse_sps(GetBitContext *gb, if (get_bits1(gb)) { // long_term_ref_pics_present_flag unsigned num_long_term_ref_pics_sps = get_ue_golomb_long(gb); + if (num_long_term_ref_pics_sps > 31U) + return AVERROR_INVALIDDATA; for (i = 0; i < num_long_term_ref_pics_sps; i++) { // num_long_term_ref_pics_sps int len = FFMIN(log2_max_pic_order_cnt_lsb_minus4 + 4, 16); skip_bits (gb, len); // lt_ref_pic_poc_lsb_sps[i] _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
