test_initconfig_get_api fails on platforms where malloc(0) returns NULL
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tests
type-bug
- Dominant language
- Python
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Description
Bug report
Bug description:
test_initconfig_get_api (Programs/_testembed.c) executes the code
assert(PyInitConfig_GetStrList(config, "xoptions", &length, &items) == 0);
assert(length == 0);
PyInitConfig_GetStrList has malloc
*items = malloc(list->length * sizeof(char*));
if length is zero the behavior of malloc(0) is implementation defined, this seems to be problematic on platforms where malloc of zero returns NULL.
CPython versions tested on:
3.14
Operating systems tested on:
Other
Linked PRs
- gh-153816
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Research direction
Start with test_initconfig_get_api in Programs/_testembed.c and trace the PyInitConfig_GetStrList call for the zero-length xoptions list. Check the implementation's allocation behavior on platforms where malloc(0) returns NULL, then run the targeted test to confirm it passes without changing the expected length of zero.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- c, python
- Domain
- api, testing-qa
- Issue type
- Bug
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Activity status
- Stale
- Clarity
- Clearly specified
- Newbie friendliness
- 30/100