ffmpeg | branch: release/2.7 | Andreas Cadhalpun <andreas.cadhal...@googlemail.com> | Fri Jul 10 19:41:43 2015 +0200| [f06d9dced4c7267008beae45f28ce4e1848ef403] | committer: Andreas Cadhalpun
hevc: check slice address length It is used as get_bits argument and reading 0 bits isn't supported. Reviewed-by: Michael Niedermayer <michae...@gmx.at> Signed-off-by: Andreas Cadhalpun <andreas.cadhal...@googlemail.com> (cherry picked from commit 05cc8c8e4b7008ff3be8ec477c901b2ceca4b16b) Signed-off-by: Andreas Cadhalpun <andreas.cadhal...@googlemail.com> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=f06d9dced4c7267008beae45f28ce4e1848ef403 --- libavcodec/hevc.c | 2 +- libavcodec/hevc_parser.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/libavcodec/hevc.c b/libavcodec/hevc.c index 1d2fa9c..a56063f 100644 --- a/libavcodec/hevc.c +++ b/libavcodec/hevc.c @@ -456,7 +456,7 @@ static int hls_slice_header(HEVCContext *s) slice_address_length = av_ceil_log2(s->sps->ctb_width * s->sps->ctb_height); - sh->slice_segment_addr = get_bits(gb, slice_address_length); + sh->slice_segment_addr = slice_address_length ? get_bits(gb, slice_address_length) : 0; if (sh->slice_segment_addr >= s->sps->ctb_width * s->sps->ctb_height) { av_log(s->avctx, AV_LOG_ERROR, "Invalid slice segment address: %u.\n", diff --git a/libavcodec/hevc_parser.c b/libavcodec/hevc_parser.c index 3c7c3c3..31452f2 100644 --- a/libavcodec/hevc_parser.c +++ b/libavcodec/hevc_parser.c @@ -200,7 +200,7 @@ static inline int parse_nal_units(AVCodecParserContext *s, AVCodecContext *avctx slice_address_length = av_ceil_log2_c(h->sps->ctb_width * h->sps->ctb_height); - sh->slice_segment_addr = get_bits(gb, slice_address_length); + sh->slice_segment_addr = slice_address_length ? get_bits(gb, slice_address_length) : 0; if (sh->slice_segment_addr >= h->sps->ctb_width * h->sps->ctb_height) { av_log(h->avctx, AV_LOG_ERROR, "Invalid slice segment address: %u.\n", sh->slice_segment_addr); _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
