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Fix: Potential Vulnerability in Cloned Function #733

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Merged
merged 1 commit into from
Apr 1, 2025
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Fix: Potential Vulnerability in Cloned Function #733

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#207: Out-of-bounds write
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@tabudz
tabudz committed Feb 26, 2025
commit 51a0125149a4ad68cdebe262db4fdf910852a07c
2 changes: 1 addition & 1 deletion MdeModulePkg/Universal/RegularExpressionDxe/Oniguruma/regcomp.c
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Original file line number Diff line number Diff line change
Expand Up @@ -5222,7 +5222,7 @@ concat_opt_exact_str(OptStr* to, UChar* s, UChar* end, OnigEncoding enc)

for (i = to->len, p = s; p < end && i < OPT_EXACT_MAXLEN; ) {
len = enclen(enc, p);
if (i + len > OPT_EXACT_MAXLEN) break;
if (i + len >= OPT_EXACT_MAXLEN) break;
for (j = 0; j < len && p < end; j++)
to->s[i++] = *p++;
}
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