Vulnerability Details : CVE-2023-52520
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.
Products affected by CVE-2023-52520
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.6:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.6:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.6:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.6:rc4:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-52520
0.01%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-52520
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST | 2024-12-11 |
References for CVE-2023-52520
-
https://git.kernel.org/stable/c/528ab3e605cabf2f9c9bd5944d3bfe15f6e94f81
platform/x86: think-lmi: Fix reference leak - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/124cf0ea4b82e1444ec8c7420af4e7db5558c293
platform/x86: think-lmi: Fix reference leak - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/af21c9119a37cecb7ff27ce0c2f3cf721e9d0ec4
platform/x86: think-lmi: Fix reference leak - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/c6e3023579de8d33256771ac0745239029e81106
platform/x86: think-lmi: Fix reference leak - kernel/git/stable/linux.git - Linux kernel stable treePatch
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