Module: libav Branch: release/0.6 Commit: 7a5fbe40344ae51ce629cc0694a436535beb1233
Author: Alexander Strange <[email protected]> Committer: Reinhard Tartler <[email protected]> Date: Sat Mar 24 17:32:14 2012 -0400 h264: Add check for invalid chroma_format_idc Fixes a crash when FF_DEBUG_PICT_INFO is used. Signed-off-by: Ronald S. Bultje <[email protected]> (cherry picked from commit 6ef4063957aa5025c8d2cd757b6a537e4b6874df) Fixes: CVE-2012-0851 Signed-off-by: Reinhard Tartler <[email protected]> (cherry picked from commit 47132345184dc3d0ff962a57a1225564fe979548) Signed-off-by: Reinhard Tartler <[email protected]> (cherry picked from commit c5f7c755cfccd7aa01010a2d566104c2b0fa6d86) Signed-off-by: Reinhard Tartler <[email protected]> --- libavcodec/h264_ps.c | 6 +++++- 1 files changed, 5 insertions(+), 1 deletions(-) diff --git a/libavcodec/h264_ps.c b/libavcodec/h264_ps.c index 7648e2c..d672830 100644 --- a/libavcodec/h264_ps.c +++ b/libavcodec/h264_ps.c @@ -297,8 +297,12 @@ int ff_h264_decode_seq_parameter_set(H264Context *h){ if(sps->profile_idc >= 100){ //high profile sps->chroma_format_idc= get_ue_golomb_31(&s->gb); - if(sps->chroma_format_idc == 3) + if(sps->chroma_format_idc > 3) { + av_log(h->s.avctx, AV_LOG_ERROR, "chroma_format_idc (%u) out of range\n", sps->chroma_format_idc); + return -1; + } else if(sps->chroma_format_idc == 3) { sps->residual_color_transform_flag = get_bits1(&s->gb); + } sps->bit_depth_luma = get_ue_golomb(&s->gb) + 8; sps->bit_depth_chroma = get_ue_golomb(&s->gb) + 8; sps->transform_bypass = get_bits1(&s->gb); _______________________________________________ libav-commits mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-commits
