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| author | Michael Niedermayer <michael@niedermayer.cc> | 2020-10-15 21:35:43 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-02-02 14:18:21 +0100 |
| commit | 2abb7d1bcd456e0a6d44577ff0f776a896ff38d7 (patch) | |
| tree | c65c3d0e3aa592c4d0488c0b2a30a2ee44381af0 /libavcodec | |
| parent | cc2da17f867de541423b9e361c79fee1875b6023 (diff) | |
| download | ffmpeg-2abb7d1bcd456e0a6d44577ff0f776a896ff38d7.tar.gz | |
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 <michael@niedermayer.cc>
(cherry picked from commit d1983628394e076001cc67d85656f9842b7282a3)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec')
| -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; |