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| author | James Almer <jamrial@gmail.com> | 2024-04-27 19:38:13 -0300 |
|---|---|---|
| committer | James Almer <jamrial@gmail.com> | 2024-04-27 19:39:23 -0300 |
| commit | 31327c2d075a413749c1461c06382993b9bba90e (patch) | |
| tree | 0dbce9308e038fed5c94a20148353900ae01b836 /libavformat/mov.c | |
| parent | 59767636c77fa9014587c3084bbc210f65a5cd2a (diff) | |
| download | ffmpeg-31327c2d075a413749c1461c06382993b9bba90e.tar.gz | |
avformat/mov: fix the check for the heif item parsing loop
Fixes: Null pointer dereference
Fixes: 67861/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5352628142800896
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: James Almer <jamrial@gmail.com>
Diffstat (limited to 'libavformat/mov.c')
| -rw-r--r-- | libavformat/mov.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/libavformat/mov.c b/libavformat/mov.c index ecd29a7d08..ede25d3342 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -9440,7 +9440,8 @@ static int mov_parse_tiles(AVFormatContext *s) break; } - if (k == grid->nb_tiles) { + if (k == mov->nb_heif_item) { + av_assert0(loop); av_log(s, AV_LOG_WARNING, "HEIF item id %d referenced by grid id %d doesn't " "exist\n", tile_id, grid->item->item_id); |