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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-05-11 15:13:53 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-05-20 03:41:33 +0200 |
| commit | 1f8047adb8dcb970c7fc0fda581a4cbf11c062ef (patch) | |
| tree | bce2d5fec18d69ef94768b9505ab138ef967240e | |
| parent | df84fb2304d848f959482fd0825e14a990656191 (diff) | |
| download | ffmpeg-1f8047adb8dcb970c7fc0fda581a4cbf11c062ef.tar.gz | |
avcodec/aacdec_fixed: Fix multiple shift exponent 33 is too large for 32-bit type 'int'
Fixes: 1471/clusterfuzz-testcase-minimized-6376460543590400
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 3a0ff78168f80f5b2c5c5544325aca4023bc67a4)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/aacdec_fixed.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/libavcodec/aacdec_fixed.c b/libavcodec/aacdec_fixed.c index 875ef582f4..f71f458b78 100644 --- a/libavcodec/aacdec_fixed.c +++ b/libavcodec/aacdec_fixed.c @@ -170,7 +170,11 @@ static void subband_scale(int *dst, int *src, int scale, int offset, int len) s = offset - (s >> 2); - if (s > 0) { + if (s > 31) { + for (i=0; i<len; i++) { + dst[i] = 0; + } + } else if (s > 0) { round = 1 << (s-1); for (i=0; i<len; i++) { out = (int)(((int64_t)src[i] * c) >> 32); |