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engine: common: soundlib: libmpg: backport fix for CVE-2017-12839.

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Original patch: https://www.mpg123.de/cgi-bin/scm/mpg123/trunk/src/libmpg123/getbits.h?view=patch&r1=2024&r2=4323
Same as: 8a5e21a2a2
This commit is contained in:
Andrey Akhmichin 2023-01-25 04:22:31 +05:00 committed by Alibek Omarov
parent 84c14b32ec
commit ffd5c2d3d0
1 changed files with 4 additions and 0 deletions
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4
engine/common/soundlib/libmpg/getbits.h
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@ -47,6 +47,10 @@ static uint getbits( mpg123_handle_t *fr, int number_of_bits )
{
ulong rval;
if( (long)(fr->wordpointer-fr->bsbuf)*8
+ fr->bitindex+number_of_bits > (long)fr->framesize*8 )
return 0;
rval = fr->wordpointer[0];
rval <<= 8;
rval |= fr->wordpointer[1];