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gh-133572: Disable error reporting for invalid memory access on unsupported WinAPI partitions #133573

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Merged
merged 5 commits into from
May 15, 2025
Merged

gh-133572: Disable error reporting for invalid memory access on unsupported WinAPI partitions #133573

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4342670
disable invalid memory error reporting on unsupported WinAPI partitions
maxbachmann May 7, 2025
dbd486c
📜🤖 Added by blurb_it.
blurb-it[bot] May 7, 2025
5c7ae18
apply code review
maxbachmann May 14, 2025
0f9ff16
cleanup patch
maxbachmann May 15, 2025
915c298
update changelog
maxbachmann May 15, 2025
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1 change: 1 addition & 0 deletions Misc/NEWS.d/next/Windows/2025-05-07-11-45-30.gh-issue-133572.Xc2zxH.rst
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Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
Avoid LsaNtStatus to WinError conversion on unsupported WinAPI partitions.
26 changes: 20 additions & 6 deletions Modules/mmapmodule.c
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Original file line number Diff line number Diff line change
Expand Up @@ -290,6 +290,24 @@ filter_page_exception_method(mmap_object *self, EXCEPTION_POINTERS *ptrs,
}
return EXCEPTION_CONTINUE_SEARCH;
}

static void
_PyErr_SetFromNTSTATUS(ULONG status)
{
#if defined(MS_WINDOWS_DESKTOP) || defined(MS_WINDOWS_SYSTEM)
PyErr_SetFromWindowsErr(LsaNtStatusToWinError((NTSTATUS)status));
#else
if (status & 0x80000000) {
// HRESULT-shaped codes are supported by PyErr_SetFromWindowsErr
PyErr_SetFromWindowsErr((int)status);
}
else {
// No mapping for NTSTATUS values, so just return it for diagnostic purposes
// If we provide it as winerror it could incorrectly change the type of the exception.
PyErr_Format(PyExc_OSError, "Operating system error NTSTATUS=0x%08lX", status);
}
#endif
}
#endif

#if defined(MS_WINDOWS) && !defined(DONT_USE_SEH)
Expand All @@ -303,9 +321,7 @@ do { \
assert(record.ExceptionCode == EXCEPTION_IN_PAGE_ERROR || \
record.ExceptionCode == EXCEPTION_ACCESS_VIOLATION); \
if (record.ExceptionCode == EXCEPTION_IN_PAGE_ERROR) { \
NTSTATUS status = (NTSTATUS) record.ExceptionInformation[2]; \
ULONG code = LsaNtStatusToWinError(status); \
PyErr_SetFromWindowsErr(code); \
_PyErr_SetFromNTSTATUS((ULONG)record.ExceptionInformation[2]); \
} \
else if (record.ExceptionCode == EXCEPTION_ACCESS_VIOLATION) { \
PyErr_SetFromWindowsErr(ERROR_NOACCESS); \
Expand All @@ -332,9 +348,7 @@ do { \
assert(record.ExceptionCode == EXCEPTION_IN_PAGE_ERROR || \
record.ExceptionCode == EXCEPTION_ACCESS_VIOLATION); \
if (record.ExceptionCode == EXCEPTION_IN_PAGE_ERROR) { \
NTSTATUS status = (NTSTATUS) record.ExceptionInformation[2]; \
ULONG code = LsaNtStatusToWinError(status); \
PyErr_SetFromWindowsErr(code); \
_PyErr_SetFromNTSTATUS((ULONG)record.ExceptionInformation[2]); \
} \
else if (record.ExceptionCode == EXCEPTION_ACCESS_VIOLATION) { \
PyErr_SetFromWindowsErr(ERROR_NOACCESS); \
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