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avcodec/aacsbr_fixed: Fix multiple runtime error: shift exponent 150 is too large for 32-bit type 'int'

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Fixes: 1681/clusterfuzz-testcase-minimized-5970545365483520

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2017-05-19 12:25:52 +02:00
parent 2ccd2c9003
commit 3fb104f447
1 changed files with 8 additions and 0 deletions
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8
libavcodec/aacsbr_fixed.c
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@ -288,6 +288,8 @@ static void sbr_hf_inverse_filter(SBRDSPContext *dsp,
shift = a00.exp;
if (shift >= 3)
alpha0[k][0] = 0x7fffffff;
else if (shift <= -30)
alpha0[k][0] = 0;
else {
a00.mant *= 2;
shift = 2-shift;
@ -302,6 +304,8 @@ static void sbr_hf_inverse_filter(SBRDSPContext *dsp,
shift = a01.exp;
if (shift >= 3)
alpha0[k][1] = 0x7fffffff;
else if (shift <= -30)
alpha0[k][1] = 0;
else {
a01.mant *= 2;
shift = 2-shift;
@ -315,6 +319,8 @@ static void sbr_hf_inverse_filter(SBRDSPContext *dsp,
shift = a10.exp;
if (shift >= 3)
alpha1[k][0] = 0x7fffffff;
else if (shift <= -30)
alpha1[k][0] = 0;
else {
a10.mant *= 2;
shift = 2-shift;
@ -329,6 +335,8 @@ static void sbr_hf_inverse_filter(SBRDSPContext *dsp,
shift = a11.exp;
if (shift >= 3)
alpha1[k][1] = 0x7fffffff;
else if (shift <= -30)
alpha1[k][1] = 0;
else {
a11.mant *= 2;
shift = 2-shift;