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gh-129409: Fix Integer overflow - SEGV while writing data more than 2GB in CSV file (#129413)

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Srinivas Reddy Thatiparthy (తాటిపర్తి శ్రీనివాస్ రెడ్డి) 2025-01-29 16:45:47 +05:30 • committed by GitHub
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Misc/NEWS.d/next/Library/2025-01-29-14-30-54.gh-issue-129409.JZbOE6.rst Normal file
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@ -0,0 +1,2 @@
Fix an integer overflow in the :mod:`csv` module when writing a data field
larger than 2GB.

2
Modules/_csv.c
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@ -1138,7 +1138,7 @@ join_append_data(WriterObj *self, int field_kind, const void *field_data,
int copy_phase)
{
DialectObj *dialect = self->dialect;
int i;
Py_ssize_t i;
Py_ssize_t rec_len;
#define INCLEN \