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[3.8] bpo-40412: Nullify inittab_copy during finalization (GH-19746) #19841

Merged
merged 1 commit into from May 1, 2020
Merged

[3.8] bpo-40412: Nullify inittab_copy during finalization (GH-19746) #19841

merged 1 commit into from May 1, 2020

Commits on May 1, 2020

  1. bpo-40412: Nullify inittab_copy during finalization (pythonGH-19746) 

    Otherwise we leave a dangling pointer to free'd memory. If we
then initialize a new interpreter in the same process and call
PyImport_ExtendInittab, we will (likely) crash when calling
PyMem_RawRealloc(inittab_copy, ...) since the pointer address
is bogus.

Automerge-Triggered-By: @brettcannon
(cherry picked from commit 64224a4)

Co-authored-by: Gregory Szorc <gregory.szorc@gmail.com>
    @indygreg @miss-islington
    indygreg authored and miss-islington committed May 1, 2020
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