CVE-2023-53563 — Improper Update of Reference Count in Linux
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 96.90%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedOct 4
Description
In the Linux kernel, the following vulnerability has been resolved:
cpufreq: amd-pstate-ut: Fix kernel panic when loading the driver
After loading the amd-pstate-ut driver, amd_pstate_ut_check_perf()
and amd_pstate_ut_check_freq() use cpufreq_cpu_get() to get the policy
of the CPU and mark it as busy.
In these functions, cpufreq_cpu_put() should be used to release the
policy, but it is not, so any other entity trying to access the policy
is blocked indefinitely.
One such scenario is when amd…
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6
Affected Packages4 packages
▶CVEListV5linux/linux14eb1c96e3a3fd9cd377ac9af3c7a410f8bf1015 — fcf78a17bbb94bebaa912f0460a1848f7d374c94+4
Patches
🔴Vulnerability Details
2OSV▶
CVE-2023-53563: In the Linux kernel, the following vulnerability has been resolved: cpufreq: amd-pstate-ut: Fix kernel panic when loading the driver After loading the↗2025-10-04
GHSA▶
GHSA-jjx2-jhcm-j26c: In the Linux kernel, the following vulnerability has been resolved:
cpufreq: amd-pstate-ut: Fix kernel panic when loading the driver
After loading t↗2025-10-04