bpo-33803: Fix a crash in hamt.c (#7504)

378c53cc · Yury Selivanov · GitHub · c4f3cb77 · 378c53cc · 378c53cc
Unverified Kaydet (Commit) 378c53cc authored Haz 08, 2018 tarafından Yury Selivanov Kaydeden (comit) GitHub Haz 08, 2018
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2018-06-07-20-18-38.bpo-33803.n-Nq6_.rst ...ore and Builtins/2018-06-07-20-18-38.bpo-33803.n-Nq6_.rst +2 -0

hamt.c Python/hamt.c +2 -0

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--- a/Misc/NEWS.d/next/Core and Builtins/2018-06-07-20-18-38.bpo-33803.n-Nq6_.rst
+++ b/Misc/NEWS.d/next/Core and Builtins/2018-06-07-20-18-38.bpo-33803.n-Nq6_.rst
+Fix a crash in hamt.c caused by enabling GC tracking for an object that
+hadn't all of its fields set to NULL.
--- a/Python/hamt.c
+++ b/Python/hamt.c
@@ -2476,6 +2476,8 @@ hamt_alloc(void)
    if (o == NULL) {
        return NULL;
    }
+    o->h_count = 0;
+    o->h_root = NULL;
    o->h_weakreflist = NULL;
    PyObject_GC_Track(o);
    return o;