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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-11-20 20:34:55 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2020-07-01 12:49:26 +0200 |
| commit | b37e5eb31f93d827f266db4d4c2dcbed9a1ba3b5 (patch) | |
| tree | ad8521d746f0c45f679828fd5dc72c08d9403b93 | |
| parent | 1de4bc525c524f4ba9dcc833cf951053175a5635 (diff) | |
| download | ffmpeg-b37e5eb31f93d827f266db4d4c2dcbed9a1ba3b5.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 be653333e5..8e40fa7d10 100644 --- a/libavcodec/wmaprodec.c +++ b/libavcodec/wmaprodec.c @@ -523,7 +523,7 @@ static av_cold int decode_init(AVCodecContext *avctx) 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++) { |