CVE-2023-52520

Description

In the Linux kernel, the following vulnerability has been resolved: platform/x86: think-lmi: Fix reference leak If a duplicate attribute is found using kset_find_obj(), 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.

CVSS Metrics

• v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 0.01%• Percentile: 3%

Affected Systems

• linux•linux

  ≥ 1bcad8e510b27ad843315ab2c27ccf459e3acded, < 124cf0ea4b82e1444ec8c7420af4e7db5558c293 | ≥ 1bcad8e510b27ad843315ab2c27ccf459e3acded, < af21c9119a37cecb7ff27ce0c2f3cf721e9d0ec4 | ≥ 1bcad8e510b27ad843315ab2c27ccf459e3acded, < c6e3023579de8d33256771ac0745239029e81106 | ≥ 1bcad8e510b27ad843315ab2c27ccf459e3acded, < 528ab3e605cabf2f9c9bd5944d3bfe15f6e94f81 | 5.14

• linux•linux_kernel

  ≥ 5.14, < 5.15.136 | ≥ 5.16, < 6.1.59 | ≥ 6.2, < 6.5.8 | 6.6:rc1 | 6.6:rc2 | 6.6:rc3 | 6.6:rc4

References (4)

• https://git.kernel.org/stable/c/124cf0ea4b82e1444ec8c7420af4e7db5558c293
• https://git.kernel.org/stable/c/af21c9119a37cecb7ff27ce0c2f3cf721e9d0ec4
• https://git.kernel.org/stable/c/c6e3023579de8d33256771ac0745239029e81106
• https://git.kernel.org/stable/c/528ab3e605cabf2f9c9bd5944d3bfe15f6e94f81