CVE-2021-47467

linux: In the Linux kernel, the following vulnerability has been resolved: kunit: fix reference count leak in kfree_at_end...

CVE-2021-47467 is fixed in linux on 1 platform, first by DEBIAN-CVE-2021-47467, released May 22, 2024. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
5.3
medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0049
42nd percentile

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);

Where it's fixed

ProductFixed inFixReleased
Linux
linux · Debian 12.15 (bookworm) 5.14.16-1 DEBIAN-CVE-2021-47467 May 22, 2024
linux · Debian 13.5 (trixie) 5.14.16-1 DEBIAN-CVE-2021-47467 May 22, 2024
linux · Debian 14 5.14.16-1 DEBIAN-CVE-2021-47467 May 22, 2024

Patch Radar data is free to use with attribution. Terms and how to credit it.

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.