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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-11-20 20:34:55 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-12-31 19:51:57 +0100 |
| commit | 01f5442b8271d89cac1670cd2d344c37a16e31a3 (patch) | |
| tree | fb1800169921262583813abd3efffa692ec652f7 | |
| parent | 090d10ce607db53c45dfdb2c9f832ab0e05274e0 (diff) | |
| download | ffmpeg-01f5442b8271d89cac1670cd2d344c37a16e31a3.tar.gz | |
avcodec/wmaprodec: Fixes integer overflow with 32bit samples
Fixes: left shift of 1 by 31 places cannot be represented in type 'int'
Fixes: 18860/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMAPRO_fuzzer-5755223125786624
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 a9cc69c0d59057ea172a107e0308fdf5fd8fc04e)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/wmaprodec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/wmaprodec.c b/libavcodec/wmaprodec.c index 91a47aeb41..cbf5fa7fd5 100644 --- a/libavcodec/wmaprodec.c +++ b/libavcodec/wmaprodec.c @@ -544,7 +544,7 @@ static av_cold int decode_init(WMAProDecodeCtx *s, AVCodecContext *avctx, int nu for (i = 0; i < WMAPRO_BLOCK_SIZES; i++) ff_mdct_init(&s->mdct_ctx[i], WMAPRO_BLOCK_MIN_BITS+1+i, 1, 1.0 / (1 << (WMAPRO_BLOCK_MIN_BITS + i - 1)) - / (1 << (s->bits_per_sample - 1))); + / (1ll << (s->bits_per_sample - 1))); /** init MDCT windows: simple sine window */ for (i = 0; i < WMAPRO_BLOCK_SIZES; i++) { |