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Fix out of bound read in UTF-32 decoder on "narrow Unicode" builds.

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Serhiy Storchaka 2013-01-08 22:45:42 +02:00
parent f6fd794fac
commit dec798eb46
1 changed files with 1 additions and 1 deletions
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2
Objects/unicodeobject.c
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@ -3182,7 +3182,7 @@ PyUnicode_DecodeUTF32Stateful(const char *s,
/* On narrow builds we split characters outside the BMP into two /* On narrow builds we split characters outside the BMP into two
codepoints => count how much extra space we need. */ codepoints => count how much extra space we need. */
#ifndef Py_UNICODE_WIDE #ifndef Py_UNICODE_WIDE
for (qq = q; qq < e; qq += 4) for (qq = q; e - qq >= 4; qq += 4)
if (qq[iorder[2]] != 0 || qq[iorder[3]] != 0) if (qq[iorder[2]] != 0 || qq[iorder[3]] != 0)
pairs++; pairs++;
#endif #endif