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Issue #15144: Fix possible integer overflow when handling pointers as integer values, by using Py_uintptr_t instead of size_t.

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Patch by Serhiy Storchaka.
This commit is contained in:
Antoine Pitrou 2012-09-20 20:56:47 +02:00
parent 1c47222a25
commit ca8aa4acf6
11 changed files with 44 additions and 45 deletions
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3
Objects/stringlib/fastsearch.h
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@ -43,8 +43,7 @@ STRINGLIB(fastsearch_memchr_1char)(const STRINGLIB_CHAR* s, Py_ssize_t n,
#define DO_MEMCHR(memchr, s, needle, nchars) do { \
candidate = memchr((const void *) (s), (needle), (nchars) * sizeof(STRINGLIB_CHAR)); \
found = (const STRINGLIB_CHAR *) \
((Py_ssize_t) candidate & (~ ((Py_ssize_t) sizeof(STRINGLIB_CHAR) - 1))); \
found = (const STRINGLIB_CHAR *) _Py_ALIGN_DOWN(candidate, sizeof(STRINGLIB_CHAR)); \
} while (0)
if (mode == FAST_SEARCH) {