41 lines
1.4 KiB
Diff
41 lines
1.4 KiB
Diff
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# HG changeset patch
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# User Serhiy Storchaka <storchaka@gmail.com>
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# Date 1372008129 -10800
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# Node ID 2f1e8b7fa534b147280fdc9b92e44a7c7305338a
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# Parent 8f0adcb66633ee97e4f7bdeee2104268113b86c3
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Issue #18184: PyUnicode_FromFormat() and PyUnicode_FromFormatV() now raise
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OverflowError when an argument of %c format is out of range.
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diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
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--- a/Objects/unicodeobject.c
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+++ b/Objects/unicodeobject.c
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@@ -740,8 +740,25 @@ PyUnicode_FromFormatV(const char *format
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switch (*f) {
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case 'c':
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- (void)va_arg(count, int);
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+ {
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+ int ordinal = va_arg(count, int);
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+#ifdef Py_UNICODE_WIDE
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+ if (ordinal < 0 || ordinal > 0x10ffff) {
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+ PyErr_SetString(PyExc_OverflowError,
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+ "%c arg not in range(0x110000) "
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+ "(wide Python build)");
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+ goto fail;
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+ }
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+#else
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+ if (ordinal < 0 || ordinal > 0xffff) {
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+ PyErr_SetString(PyExc_OverflowError,
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+ "%c arg not in range(0x10000) "
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+ "(narrow Python build)");
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+ goto fail;
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+ }
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+#endif
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/* fall through... */
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+ }
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case '%':
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n++;
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break;
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