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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-06-01 18:48:37 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-06-04 01:10:21 +0200 |
| commit | 2c3bcf6bf2381f214d834bf71eb5b79caac08e7d (patch) | |
| tree | 2c6466b753d25318eee506845690810b0996a4dc | |
| parent | ecc3fe3859f3f924eb9f841fd0cc5c42d9636a8b (diff) | |
| download | ffmpeg-2c3bcf6bf2381f214d834bf71eb5b79caac08e7d.tar.gz | |
avcodec/wavpack: Fix runtime error: shift exponent 32 is too large for 32-bit type 'int'
Fixes: 1967/clusterfuzz-testcase-minimized-5757031199801344
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 8b3e580b7f436206e84dac89415e057fa9abdab8)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/wavpack.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/wavpack.c b/libavcodec/wavpack.c index 9ce074d975..e55cd82595 100644 --- a/libavcodec/wavpack.c +++ b/libavcodec/wavpack.c @@ -184,7 +184,7 @@ static int wv_get_value(WavpackFrameContext *ctx, GetBitContext *gb, goto error; t += t2; } else { - if (get_bits_left(gb) < t2 - 1) + if (t2 >= 32 || get_bits_left(gb) < t2 - 1) goto error; t += get_bits_long(gb, t2 - 1) | (1 << (t2 - 1)); } |