CVE-2022-50170
Analyzed Analyzed - Analysis Complete
BaseFortify

Publication date: 2025-06-18

Last updated on: 2025-11-28

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: kunit: executor: Fix a memory leak on failure in kunit_filter_tests It's possible that memory allocation for 'filtered' will fail, but for the copy of the suite to succeed. In this case, the copy could be leaked. Properly free 'copy' in the error case for the allocation of 'filtered' failing. Note that there may also have been a similar issue in kunit_filter_subsuites, before it was removed in "kunit: flatten kunit_suite*** to kunit_suite** in .kunit_test_suites". This was reported by clang-analyzer via the kernel test robot, here: https://lore.kernel.org/all/[email protected]/ And by smatch via Dan Carpenter and the kernel test robot: https://lore.kernel.org/all/[email protected]/
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Meta Information
Published
2025-06-18
Last Modified
2025-11-28
Generated
2026-05-07
AI Q&A
2025-06-18
EPSS Evaluated
2026-05-05
NVD
CVE-2022-50170
Affected Vendors & Products
Showing 3 associated CPEs
Vendor Product Version / Range
linux linux_kernel From 5.17.14 (inc) to 5.18 (exc)
linux linux_kernel From 5.18.3 (inc) to 5.18.18 (exc)
linux linux_kernel From 5.19 (inc) to 5.19.2 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-401 The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.
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AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability is a memory leak in the Linux kernel's kunit executor. Specifically, when memory allocation for 'filtered' fails but the copy of the suite succeeds, the allocated memory for the copy is not properly freed, causing a memory leak. The fix ensures that the 'copy' is properly freed if the allocation for 'filtered' fails.


How can this vulnerability impact me? :

The impact of this vulnerability is a memory leak in the kernel during test execution, which could lead to increased memory usage and potentially degrade system performance or stability over time if the leak occurs repeatedly.


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