17 lines
739 B
Plaintext
17 lines
739 B
Plaintext
$OpenBSD: patch-src_load_wav_cpp,v 1.1 2011/08/18 17:56:48 jasper Exp $
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Fix integer overflow (SA45131/A)
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From upstream git: 2d4c56de314ab13e4437bd8b609f0b751066eee8
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--- src/load_wav.cpp.orig Thu Aug 18 19:37:38 2011
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+++ src/load_wav.cpp Thu Aug 18 19:37:57 2011
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@@ -54,7 +54,7 @@ BOOL CSoundFile::ReadWav(const BYTE *lpStream, DWORD d
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if ((Patterns[1] = AllocatePattern(64, 4)) == NULL) return TRUE;
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UINT samplesize = (pfmt->channels * pfmt->bitspersample) >> 3;
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UINT len = pdata->length, bytelen;
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- if (dwMemPos + len > dwMemLength - 8) len = dwMemLength - dwMemPos - 8;
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+ if (len > dwMemLength - 8 - dwMemPos) len = dwMemLength - dwMemPos - 8;
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len /= samplesize;
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bytelen = len;
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if (pfmt->bitspersample >= 16) bytelen *= 2;
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