Module: libav Branch: master Commit: 84df6d6a85e2136be60fd34bb57dd00705a01e28
Author: Michael Niedermayer <[email protected]> Committer: Anton Khirnov <[email protected]> Date: Thu Sep 19 16:26:25 2013 +0200 h264_sei: check SEI size Signed-off-by: Anton Khirnov <[email protected]> --- libavcodec/h264_sei.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/libavcodec/h264_sei.c b/libavcodec/h264_sei.c index 47f9c14..27a2c76 100644 --- a/libavcodec/h264_sei.c +++ b/libavcodec/h264_sei.c @@ -190,6 +190,12 @@ int ff_h264_decode_sei(H264Context *h) size += show_bits(&h->gb, 8); while (get_bits(&h->gb, 8) == 255); + if (size > get_bits_left(&h->gb) / 8) { + av_log(h->avctx, AV_LOG_ERROR, "SEI type %d truncated at %d\n", + type, get_bits_left(&h->gb)); + return AVERROR_INVALIDDATA; + } + switch (type) { case SEI_TYPE_PIC_TIMING: // Picture timing SEI ret = decode_picture_timing(h); _______________________________________________ libav-commits mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-commits
