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| author | Michael Niedermayer <michael@niedermayer.cc> | 2018-01-14 00:39:40 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2018-01-15 19:55:22 +0100 |
| commit | 6887e412434776eb260ad3904f565be491dd5726 (patch) | |
| tree | ffce940d0eba8f5ad334ffa232d268ceae7885ab | |
| parent | a1f38c75893c852cf19dcf3e4553549ba1e70950 (diff) | |
| download | ffmpeg-6887e412434776eb260ad3904f565be491dd5726.tar.gz | |
avcodec/jpeg2000: Check sum of sizes of band->prec before allocating
Fixes: OOM
Fixes: 4810/clusterfuzz-testcase-minimized-6034253235093504
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/jpeg2000.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavcodec/jpeg2000.c b/libavcodec/jpeg2000.c index e7f03bd0df..8e90980976 100644 --- a/libavcodec/jpeg2000.c +++ b/libavcodec/jpeg2000.c @@ -541,6 +541,9 @@ int ff_jpeg2000_init_component(Jpeg2000Component *comp, if (!reslevel->band) return AVERROR(ENOMEM); + if (reslevel->num_precincts_x * (uint64_t)reslevel->num_precincts_y * reslevel->nbands > avctx->max_pixels / sizeof(*reslevel->band->prec)) + return AVERROR(ENOMEM); + for (bandno = 0; bandno < reslevel->nbands; bandno++, gbandno++) { ret = init_band(avctx, reslevel, comp, codsty, qntsty, |