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| author | Michael Niedermayer <michael@niedermayer.cc> | 2022-06-09 22:21:55 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2022-09-01 00:41:28 +0200 |
| commit | c03f09f6f4a6abd4d85e460763d0d6ffdef45b0e (patch) | |
| tree | 74286a4d52a2919d3b75a69d471f9e63bc4d77f5 | |
| parent | 5bf38f660c70d8726a9a4aef72ec8f8da256319c (diff) | |
| download | ffmpeg-c03f09f6f4a6abd4d85e460763d0d6ffdef45b0e.tar.gz | |
avcodec/hevcdsp_template: stay within tables in sao_band_filter()
Fixes: out of array read
Fixes: 47875/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_HEVC_fuzzer-5719393113341952
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 9c5250a5612d4b32d79108de0c03945b2017963e)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/hevcdsp_template.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/hevcdsp_template.c b/libavcodec/hevcdsp_template.c index 56cd9e605d..61425975cd 100644 --- a/libavcodec/hevcdsp_template.c +++ b/libavcodec/hevcdsp_template.c @@ -313,7 +313,7 @@ static void FUNC(sao_band_filter)(uint8_t *_dst, uint8_t *_src, offset_table[(k + sao_left_class) & 31] = sao_offset_val[k + 1]; for (y = 0; y < height; y++) { for (x = 0; x < width; x++) - dst[x] = av_clip_pixel(src[x] + offset_table[src[x] >> shift]); + dst[x] = av_clip_pixel(src[x] + offset_table[(src[x] >> shift) & 31]); dst += stride_dst; src += stride_src; } |