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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-06-01 18:48:37 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-06-16 01:05:29 +0200 |
| commit | b7afa9f8aad0da942e7a528faadba6285596e234 (patch) | |
| tree | 7228024c454017ec8b3479c6819c2e4372ccc2dc | |
| parent | a8643da03a98562d4ea3a687beac486677e93916 (diff) | |
| download | ffmpeg-b7afa9f8aad0da942e7a528faadba6285596e234.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 a0f5d509bc..72d5613363 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)); } |