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| author | Michael Niedermayer <michael@niedermayer.cc> | 2024-03-21 02:15:16 +0100 |
|---|---|---|
| committer | Nuo Mi <nuomi2021@gmail.com> | 2024-03-23 22:33:21 +0800 |
| commit | 57f252b2d10c3dbb422f5ddc4e8625bf56e27a9c (patch) | |
| tree | 5e04af227826afd0f335246950d8ad3ee8d78272 | |
| parent | e99594812c52a5286bd8fea927ac9279d9dc890e (diff) | |
| download | ffmpeg-57f252b2d10c3dbb422f5ddc4e8625bf56e27a9c.tar.gz | |
avcodec/cbs_h266_syntax_template: Check tile_y
Fixes: out of array access
Fixes: 67021/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-4883576579489792
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/cbs_h266_syntax_template.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavcodec/cbs_h266_syntax_template.c b/libavcodec/cbs_h266_syntax_template.c index 49fb12ba77..0aae9fdfd5 100644 --- a/libavcodec/cbs_h266_syntax_template.c +++ b/libavcodec/cbs_h266_syntax_template.c @@ -2072,6 +2072,8 @@ static int FUNC(pps) (CodedBitstreamContext *ctx, RWContext *rw, tile_x = tile_idx % current->num_tile_columns; tile_y = tile_idx / current->num_tile_columns; + if (tile_y >= current->num_tile_rows) + return AVERROR_INVALIDDATA; ctu_x = 0, ctu_y = 0; for (j = 0; j < tile_x; j++) { |