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engine: common: soundlib: libmpg: backport fix for CVE-2017-11126.

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Original patch: https://www.mpg123.de/cgi-bin/scm/mpg123/trunk/src/libmpg123/layer3.c?view=patch&r1=4275&r2=4274
Same as: f246a0cdfd
This commit is contained in:
Andrey Akhmichin 2023-01-25 04:32:48 +05:00 committed by Alibek Omarov
parent ffd5c2d3d0
commit 801dbaa387
1 changed files with 7 additions and 4 deletions
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11
engine/common/soundlib/libmpg/layer3.c
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@ -35,10 +35,10 @@ static float tan1_1[16];
static float tan2_1[16]; static float tan2_1[16];
static float tan1_2[16]; static float tan1_2[16];
static float tan2_2[16]; static float tan2_2[16];
static float pow1_1[2][16]; static float pow1_1[2][32];
static float pow2_1[2][16]; static float pow2_1[2][32];
static float pow1_2[2][16]; static float pow1_2[2][32];
static float pow2_2[2][16]; static float pow2_2[2][32];
static int mapbuf0[9][152]; static int mapbuf0[9][152];
static int mapbuf1[9][156]; static int mapbuf1[9][156];
static int mapbuf2[9][44]; static int mapbuf2[9][44];
@ -217,7 +217,10 @@ void init_layer3( void )
tan2_1[i] = DOUBLE_TO_REAL_15( 1.0 / (1.0 + t)); tan2_1[i] = DOUBLE_TO_REAL_15( 1.0 / (1.0 + t));
tan1_2[i] = DOUBLE_TO_REAL_15( M_SQRT2 * t / (1.0 + t)); tan1_2[i] = DOUBLE_TO_REAL_15( M_SQRT2 * t / (1.0 + t));
tan2_2[i] = DOUBLE_TO_REAL_15( M_SQRT2 / (1.0 + t)); tan2_2[i] = DOUBLE_TO_REAL_15( M_SQRT2 / (1.0 + t));
}
for( i = 0; i < 32; i++ )
{
for( j = 0; j < 2; j++ ) for( j = 0; j < 2; j++ )
{ {
double base = pow( 2.0, -0.25 * (j + 1.0)); double base = pow( 2.0, -0.25 * (j + 1.0));