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-rw-r--r--Lib/test/test_tuple.py3
-rw-r--r--Misc/NEWS3
-rw-r--r--Objects/tupleobject.c3
3 files changed, 8 insertions, 1 deletions
diff --git a/Lib/test/test_tuple.py b/Lib/test/test_tuple.py
index c37adc2..53065bb 100644
--- a/Lib/test/test_tuple.py
+++ b/Lib/test/test_tuple.py
@@ -146,6 +146,9 @@ class TupleTest(seq_tests.CommonTest):
pass
self.check_track_dynamic(MyTuple, True)
+ def test_bug7466(self):
+ # Trying to untrack an unfinished tuple could crash Python
+ self._not_tracked(tuple(gc.collect() for i in range(101)))
def test_main():
support.run_unittest(TupleTest)
diff --git a/Misc/NEWS b/Misc/NEWS
index 850369e..d3b26a4 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -12,6 +12,9 @@ What's New in Python 3.2 Alpha 1?
Core and Builtins
-----------------
+- Issue #7466: segmentation fault when the garbage collector is called
+ in the middle of populating a tuple. Patch by Florent Xicluna.
+
- Issue #7419: setlocale() could crash the interpreter on Windows when called
with invalid values.
diff --git a/Objects/tupleobject.c b/Objects/tupleobject.c
index 290107a..884174d 100644
--- a/Objects/tupleobject.c
+++ b/Objects/tupleobject.c
@@ -850,7 +850,8 @@ _PyTuple_Resize(PyObject **pv, Py_ssize_t newsize)
/* XXX UNREF/NEWREF interface should be more symmetrical */
_Py_DEC_REFTOTAL;
- _PyObject_GC_UNTRACK(v);
+ if (_PyObject_GC_IS_TRACKED(v))
+ _PyObject_GC_UNTRACK(v);
_Py_ForgetReference((PyObject *) v);
/* DECREF items deleted by shrinkage */
for (i = newsize; i < oldsize; i++) {