diff options
| author | Janne Grunau <janne-libav@jannau.net> | 2012-11-25 16:02:02 +0100 |
|---|---|---|
| committer | Janne Grunau <janne-libav@jannau.net> | 2012-11-27 12:26:33 +0100 |
| commit | 6e5cdf26281945ddea3aaf5eca4d127791f23ca8 (patch) | |
| tree | fb6f58ad063d041d3237e2556048e47393be88dc /libavcodec | |
| parent | 150b2361ca08085415c8d67a9b1b2a6fbe1c44be (diff) | |
| download | ffmpeg-6e5cdf26281945ddea3aaf5eca4d127791f23ca8.tar.gz | |
h264: check ref_count validity for num_ref_idx_active_override_flag
Fixes segfault in the fuzzed sample bipbop234.ts_s226407.
CC: libav-stable@libav.org
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/h264.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/libavcodec/h264.c b/libavcodec/h264.c index 5440d7bc31..8226d74326 100644 --- a/libavcodec/h264.c +++ b/libavcodec/h264.c @@ -2841,8 +2841,13 @@ static int decode_slice_header(H264Context *h, H264Context *h0) if (num_ref_idx_active_override_flag) { h->ref_count[0] = get_ue_golomb(&s->gb) + 1; - if (h->slice_type_nos == AV_PICTURE_TYPE_B) + if (h->ref_count[0] < 1) + return AVERROR_INVALIDDATA; + if (h->slice_type_nos == AV_PICTURE_TYPE_B) { h->ref_count[1] = get_ue_golomb(&s->gb) + 1; + if (h->ref_count[1] < 1) + return AVERROR_INVALIDDATA; + } } if (h->slice_type_nos == AV_PICTURE_TYPE_B) |