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authorMichael Niedermayer <michael@niedermayer.cc>2017-06-11 14:32:35 +0200
committerMichael Niedermayer <michael@niedermayer.cc>2017-06-16 01:05:30 +0200
commit1df8547366469036eb162acac697b6354aa535d1 (patch)
tree0f252399503cdfa1e0d7322b9956a74b8c847319
parent722cbfc5e163d2ecf9339f262c4cf354c20c371d (diff)
downloadffmpeg-1df8547366469036eb162acac697b6354aa535d1.tar.gz
avcodec/aacdec_fixed: Fix runtime error: left shift of negative value -1297616
Fixes: 2195/clusterfuzz-testcase-minimized-4736721533009920 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 6d499ecef9c2467772b6066176ffda0b7ab27cc2) Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
-rw-r--r--libavcodec/aacdec_fixed.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/aacdec_fixed.c b/libavcodec/aacdec_fixed.c
index 7945c46355..4506001619 100644
--- a/libavcodec/aacdec_fixed.c
+++ b/libavcodec/aacdec_fixed.c
@@ -389,7 +389,7 @@ static void apply_dependent_coupling_fixed(AACContext *ac,
for (k = offsets[i]; k < offsets[i + 1]; k++) {
tmp = (int)(((int64_t)src[group * 128 + k] * c + \
(int64_t)0x1000000000) >> 37);
- dest[group * 128 + k] += tmp << shift;
+ dest[group * 128 + k] += tmp * (1 << shift);
}
}
}