CVE-2023-52520

If a duplicate attribute is found using ksetfindobj(), a reference to that attribute is returned which needs to be disposed accordingly using kobject_put(). Move the setting name validation into a separate function to allow for this change without having to duplicate the cleanup code for this setting. As a side note, a very similar bug was fixed in commit 7295a996fdab ("platform/x86: dell-sysman: Fix reference leak"), so it seems that the bug was copied from that driver.

Compile-tested only.

Database specific

{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52520.json",
    "cna_assigner": "Linux"
}

References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type: GIT
Repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events: Introduced

1bcad8e510b27ad843315ab2c27ccf459e3acded

Fixed

124cf0ea4b82e1444ec8c7420af4e7db5558c293

Fixed

af21c9119a37cecb7ff27ce0c2f3cf721e9d0ec4

Fixed

c6e3023579de8d33256771ac0745239029e81106

Fixed

528ab3e605cabf2f9c9bd5944d3bfe15f6e94f81

Database specific

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-52520.json"

Linux / Kernel

Package

Name: Kernel

Affected ranges

Type: ECOSYSTEM
Events: Introduced

5.14.0

Fixed

5.15.136

Type: ECOSYSTEM
Events: Introduced

5.16.0

Fixed

6.1.59

Type: ECOSYSTEM
Events: Introduced

6.2.0

Fixed

6.5.8

Database specific

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-52520.json"