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bpo-38383: Fix possible integer overflow in startswith() of bytes and bytearray. (GH-16603)

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Hai Shi 2019-10-06 20:17:18 +08:00 • committed by Serhiy Storchaka
parent c38e725d17
commit 24ddd9c2d6
1 changed files with 1 additions and 1 deletions
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2
Objects/bytes_methods.c
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@ -743,7 +743,7 @@ tailmatch(const char *str, Py_ssize_t len, PyObject *substr,
if (direction < 0) {
/* startswith */
if (start + slen > len)
if (start > len - slen)
goto notfound;
} else {
/* endswith */