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extra checking on memory allocation sizes to prevent a class of overflow attacks

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This commit is contained in:
Josh Coalson
2007-09-11 04:49:56 +00:00
parent 0221d87c89
commit 0f008d2e9e
26 changed files with 234 additions and 115 deletions
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3
src/share/utf8/charset.c
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@@ -35,6 +35,7 @@
#include <stdlib.h>
#include "share/alloc.h"
#include "charset.h"
#include "charmaps.h"
@@ -492,7 +493,7 @@ int charset_convert(const char *fromcode, const char *tocode,
if (!charset1 || !charset2 )
return -1;
tobuf = (char *)malloc(fromlen * charset2->max + 1);
tobuf = (char *)safe_malloc_mul2add_(fromlen, /*times*/charset2->max, /*+*/1);
if (!tobuf)
return -2;