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| author | Michael Niedermayer <michael@niedermayer.cc> | 2023-04-16 23:55:56 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2023-05-01 00:48:32 +0200 |
| commit | cb8180aa66839fe05e3a29504fb2f67336312227 (patch) | |
| tree | 7d4605bf4e019cbe1497f635224801af60214c13 /libavcodec | |
| parent | e2e34c7731372b65b41ddb11334ccaeba4a76f13 (diff) | |
| download | ffmpeg-cb8180aa66839fe05e3a29504fb2f67336312227.tar.gz | |
avcodec/hevc_ps: Check depth to be within 8 to 16
Fixes: assertion failure in bitreader
Fixes: 45982/clusterfuzz-testcase-minimized-ffmpeg_IO_DEMUXER_fuzzer-627318668066816
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/hevc_ps.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libavcodec/hevc_ps.c b/libavcodec/hevc_ps.c index bba0ebd1dd..266adb6e86 100644 --- a/libavcodec/hevc_ps.c +++ b/libavcodec/hevc_ps.c @@ -1557,6 +1557,10 @@ static int pps_scc_extension(GetBitContext *gb, AVCodecContext *avctx, pps->luma_bit_depth_entry = get_ue_golomb_31(gb) + 8; if (!pps->monochrome_palette_flag) pps->chroma_bit_depth_entry = get_ue_golomb_31(gb) + 8; + + if (pps->chroma_bit_depth_entry > 16 || pps->chroma_bit_depth_entry > 16) + return AVERROR_INVALIDDATA; + num_comps = pps->monochrome_palette_flag ? 1 : 3; for (int comp = 0; comp < num_comps; comp++) { int bit_depth = !comp ? pps->luma_bit_depth_entry : pps->chroma_bit_depth_entry; |