ffmpeg | branch: release/1.1 | Michael Niedermayer <michae...@gmx.at> | Fri Feb
6 04:11:56 2015 +0100| [9d49f4e08121aedbdd128e64080382d0fe6943c0] | committer:
Michael Niedermayer
avcodec/h264_ps: More completely check the bit depths
Fixes out of array read
Fixes: asan_static-oob_30328b6_719_cov_3325483287_H264_artifacts_motion.h264
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michae...@gmx.at>
(cherry picked from commit 69aa79365c1e8e1cb597d33e77bf1062c2ef47d4)
Conflicts:
libavcodec/h264_ps.c
Signed-off-by: Michael Niedermayer <michae...@gmx.at>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=9d49f4e08121aedbdd128e64080382d0fe6943c0
---
libavcodec/h264_ps.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/libavcodec/h264_ps.c b/libavcodec/h264_ps.c
index b96a8be..79da0bc 100644
--- a/libavcodec/h264_ps.c
+++ b/libavcodec/h264_ps.c
@@ -387,7 +387,9 @@ int ff_h264_decode_seq_parameter_set(H264Context *h){
}
sps->bit_depth_luma = get_ue_golomb(&s->gb) + 8;
sps->bit_depth_chroma = get_ue_golomb(&s->gb) + 8;
- if (sps->bit_depth_luma > 14U || sps->bit_depth_chroma > 14U ||
sps->bit_depth_luma != sps->bit_depth_chroma) {
+ if (sps->bit_depth_luma < 8 || sps->bit_depth_luma > 14 ||
+ sps->bit_depth_chroma < 8 || sps->bit_depth_chroma > 14 ||
+ sps->bit_depth_luma != sps->bit_depth_chroma) {
av_log(h->s.avctx, AV_LOG_ERROR, "illegal bit depth value (%d,
%d)\n",
sps->bit_depth_luma, sps->bit_depth_chroma);
goto fail;
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