cve-2021-47467
Vulnerability from cvelistv5
Published
2024-05-22 06:23
Modified
2025-01-17 15:55
Severity ?
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Summary
In the Linux kernel, the following vulnerability has been resolved: kunit: fix reference count leak in kfree_at_end The reference counting issue happens in the normal path of kfree_at_end(). When kunit_alloc_and_get_resource() is invoked, the function forgets to handle the returned resource object, whose refcount increased inside, causing a refcount leak. Fix this issue by calling kunit_alloc_resource() instead of kunit_alloc_and_get_resource(). Fixed the following when applying: Shuah Khan <skhan@linuxfoundation.org> CHECK: Alignment should match open parenthesis + kunit_alloc_resource(test, NULL, kfree_res_free, GFP_KERNEL, (void *)to_free);
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bbdd158b40b66a9403391a517f24ef6613573446
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f62314b1ced25c58b86e044fc951cd6a1ea234cf
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/bbdd158b40b66a9403391a517f24ef6613573446
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/f62314b1ced25c58b86e044fc951cd6a1ea234cf
Impacted products
Vendor Product Version
Linux Linux Version: 1d71307a6f94df3750f8f884545a769e227172fe
Version: 1d71307a6f94df3750f8f884545a769e227172fe
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   Linux Linux Version: 5.14
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