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| author | Michael Niedermayer <michael@niedermayer.cc> | 2020-11-14 21:10:18 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2020-11-21 22:09:51 +0100 |
| commit | 2eb641741766e98401f2a9d9a91c7afbdcb67d4b (patch) | |
| tree | 62050cde44f1d6120105f247cfeb06a98a38235e | |
| parent | 8b50e8bc2975fad85e0713e05940ee9ecb5e8a18 (diff) | |
| download | ffmpeg-2eb641741766e98401f2a9d9a91c7afbdcb67d4b.tar.gz | |
avcodec/mv30: Use unsigned in idct_1d()
Fixes: signed integer overflow: 2110302399 + 39074947 cannot be represented in type 'int'
Fixes: 27330/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MV30_fuzzer-5664923153334272
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/mv30.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/mv30.c b/libavcodec/mv30.c index 9f28199478..59088d84f8 100644 --- a/libavcodec/mv30.c +++ b/libavcodec/mv30.c @@ -102,7 +102,7 @@ static void get_qtable(int16_t *table, int quant, const uint8_t *quant_tab) } } -static inline void idct_1d(int *blk, int step) +static inline void idct_1d(unsigned *blk, int step) { const unsigned t0 = blk[0 * step] + blk[4 * step]; const unsigned t1 = blk[0 * step] - blk[4 * step]; |