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Created on 2019-03-10 00:08 by btharper, last changed 2022-04-11 14:59 by admin. This issue is now closed.
| Files | ||||
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| File name | Uploaded | Description | Edit | |
| asan StringPtrTestCase.txt | btharper, 2019-03-10 00:08 | Stack trace of failure | ||
| Pull Requests | |||
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| URL | Status | Linked | Edit |
| PR 12257 | merged | btharper, 2019-03-10 00:13 | |
| Messages (4) | |||
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| msg337583 - (view) | Author: Ben Harper (btharper) * | Date: 2019-03-10 00:08 | |
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 and can be replicated with the following; a stack trace from the resulting failure is attached. export ASAN_OPTIONS="detect_leaks=0" make clean ./configure --with-address-sanitizer --with-pydebug make ./python Lib/ctypes/test/test_stringptr.py StringPtrTestCase -v |
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| msg339258 - (view) | Author: Brad Larsen (blarsen) * | Date: 2019-03-31 14:01 | |
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. |
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| msg351697 - (view) | Author: Thomas Wouters (twouters) *  |
Date: 2019-09-10 15:20 | |
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 |
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| msg354198 - (view) | Author: Ben Harper (btharper) * | Date: 2019-10-08 12:45 | |
Changes merged |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:59:12 | admin | set | github: 80434 |
| 2019-10-08 12:45:52 | btharper | set | status: open -> closed messages: + msg354198 stage: patch review -> resolved |
| 2019-09-10 15:20:18 | twouters | set | nosy:
+ twouters messages: + msg351697 |
| 2019-03-31 14:01:59 | blarsen | set | nosy:
+ blarsen messages: + msg339258 |
| 2019-03-10 04:36:44 | xtreak | set | nosy:
+ gregory.p.smith, amaury.forgeotdarc, belopolsky, meador.inge |
| 2019-03-10 00:13:27 | btharper | set | keywords:
+ patch stage: patch review pull_requests: + pull_request12243 |
| 2019-03-10 00:08:40 | btharper | create | |