diff options
| author | Michael Niedermayer <[email protected]> | 2020-10-15 21:35:43 +0200 |
|---|---|---|
| committer | Michael Niedermayer <[email protected]> | 2021-09-10 16:04:26 +0200 |
| commit | f62da97dfc82ac40eccbece9a4a646704e272ba7 (patch) | |
| tree | f6f6f66434bb5434de26bd98212939c25afb04ad | |
| parent | f419c855b1ee7073667d6b438455bf242dd30a5e (diff) | |
avcodec/h264idct_template: Fix integer overflow in ff_h264_chroma422_dc_dequant_idct()
Fixes: signed integer overflow: 241173056 + 1953511200 cannot be represented in type 'int'
Fixes: 26086/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_H264_fuzzer-5068366420901888
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <[email protected]>
(cherry picked from commit d1983628394e076001cc67d85656f9842b7282a3)
Signed-off-by: Michael Niedermayer <[email protected]>
| -rw-r--r-- | libavcodec/h264idct_template.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/h264idct_template.c b/libavcodec/h264idct_template.c index 5993ae2e6e..f19579a47c 100644 --- a/libavcodec/h264idct_template.c +++ b/libavcodec/h264idct_template.c @@ -278,7 +278,7 @@ void FUNCC(ff_h264_chroma422_dc_dequant_idct)(int16_t *_block, int qmul){ const int stride= 16*2; const int xStride= 16; int i; - int temp[8]; + unsigned temp[8]; static const uint8_t x_offset[2]={0, 16}; dctcoef *block = (dctcoef*)_block; |