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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-06-04 13:02:51 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-06-05 23:16:54 +0200 |
| commit | 195b5b6cea072741f191f3c2ec981f5f606d6993 (patch) | |
| tree | 92ef43090bdef98903a5f86b8edf6f367b227030 | |
| parent | ad600ec8863301c10b952df7624633a070a9ec3b (diff) | |
| download | ffmpeg-195b5b6cea072741f191f3c2ec981f5f606d6993.tar.gz | |
avcodec/ac3dec_fixed: Fix runtime error: left shift of 419 by 23 places cannot be represented in type 'int'
Fixes: 1352/clusterfuzz-testcase-minimized-5757565017260032
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 136ce8baa4fc16cf38690cb457f7356c00e00a28)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/ac3dec_fixed.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/ac3dec_fixed.c b/libavcodec/ac3dec_fixed.c index 21756eac1b..d6dee6c5b3 100644 --- a/libavcodec/ac3dec_fixed.c +++ b/libavcodec/ac3dec_fixed.c @@ -69,7 +69,7 @@ static void scale_coefs ( int temp, temp1, temp2, temp3, temp4, temp5, temp6, temp7; mul = (dynrng & 0x1f) + 0x20; - shift = 4 - ((dynrng << 23) >> 28); + shift = 4 - (sign_extend(dynrng, 9) >> 5); if (shift > 0 ) { round = 1 << (shift-1); for (i=0; i<len; i+=8) { |