[issue36253] Use after free in ctypes test suite

Ben Harper added the comment: Changes merged -- stage: patch review -> resolved status: open -> closed ___ Python tracker ___ ___

[issue36253] Use after free in ctypes test suite

Thomas Wouters added the comment: New changeset a9b6033179b64b985394ad351501089a6a94fc9d by T. Wouters (Ben Harper) in branch 'master': bpo-36253: Remove use after free reference in ctypes test suite (GH-12257) https://github.com/python/cpython/commit/a9b6033179b64b985394ad351501089a6a94fc9d

[issue36253] Use after free in ctypes test suite

Brad Larsen added the comment: I was just going to submit a patch for this, then I found this issue. I can confirm; I see the same use-after-free without the fix. -- nosy: +blarsen ___ Python tracker

[issue36253] Use after free in ctypes test suite

Change by Karthikeyan Singaravelan : -- nosy: +amaury.forgeotdarc, belopolsky, gregory.p.smith, meador.inge ___ Python tracker ___

[issue36253] Use after free in ctypes test suite

Change by Ben Harper : -- keywords: +patch pull_requests: +12243 stage: -> patch review ___ Python tracker ___ ___

[issue36253] Use after free in ctypes test suite

New submission from Ben Harper : When running the builtin test suite with address sanitizer enabled, one of the ctypes tests causes a use after free demonstrating the danger of using a reference to the inside of a deallocated buffer. This use is detected as an error by the address sanitizer