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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-06-25 00:00:13 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-07-19 15:26:37 +0200 |
| commit | ea153eb52cba9cf3260e76db9599ccd21c2d705d (patch) | |
| tree | b1ef434b826624a16bf873ddf9cd2e41b3340c7e | |
| parent | f21e96109dc9594281052117698ed0bf1cab6aab (diff) | |
| download | ffmpeg-ea153eb52cba9cf3260e76db9599ccd21c2d705d.tar.gz | |
avcodec/hevc_ps: Fix max_dec_buffer check
Fixes: runtime error: signed integer overflow: -2147483648 - 1 cannot be represented in type 'int'
Fixes: 2339/clusterfuzz-testcase-minimized-6663164320022528
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 63e7bfe78e6d764097e845248f6d77b28b2b235c)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/hevc_ps.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libavcodec/hevc_ps.c b/libavcodec/hevc_ps.c index 19919e562f..8952bae439 100644 --- a/libavcodec/hevc_ps.c +++ b/libavcodec/hevc_ps.c @@ -939,9 +939,9 @@ int ff_hevc_parse_sps(HEVCSPS *sps, GetBitContext *gb, unsigned int *sps_id, sps->temporal_layer[i].max_dec_pic_buffering = get_ue_golomb_long(gb) + 1; sps->temporal_layer[i].num_reorder_pics = get_ue_golomb_long(gb); sps->temporal_layer[i].max_latency_increase = get_ue_golomb_long(gb) - 1; - if (sps->temporal_layer[i].max_dec_pic_buffering > HEVC_MAX_DPB_SIZE) { + if (sps->temporal_layer[i].max_dec_pic_buffering > (unsigned)HEVC_MAX_DPB_SIZE) { av_log(avctx, AV_LOG_ERROR, "sps_max_dec_pic_buffering_minus1 out of range: %d\n", - sps->temporal_layer[i].max_dec_pic_buffering - 1); + sps->temporal_layer[i].max_dec_pic_buffering - 1U); return AVERROR_INVALIDDATA; } if (sps->temporal_layer[i].num_reorder_pics > sps->temporal_layer[i].max_dec_pic_buffering - 1) { |