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avcodec/g726: Fix runtime error: left shift of negative value -2
author
Michael Niedermayer
<michael@niedermayer.cc>
Sun, 7 May 2017 13:40:07 +0000
(15:40 +0200)
committer
Michael Niedermayer
<michael@niedermayer.cc>
Sun, 7 May 2017 17:32:33 +0000
(19:32 +0200)
Fixes: 1393/clusterfuzz-testcase-minimized-
5948366791901184
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
libavcodec/g726.c
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diff --git
a/libavcodec/g726.c
b/libavcodec/g726.c
index
ca7f856
..
6922b40
100644
(file)
--- a/
libavcodec/g726.c
+++ b/
libavcodec/g726.c
@@
-269,7
+269,7
@@
static int16_t g726_decode(G726Context* c, int I)
c->se += mult(i2f(c->a[i] >> 2, &f), &c->sr[i]);
c->se >>= 1;
- return av_clip(re_signal
<< 2
, -0xffff, 0xffff);
+ return av_clip(re_signal
* 4
, -0xffff, 0xffff);
}
static av_cold int g726_reset(G726Context *c)