CVE-2025-21841 — Improper Update of Reference Count in Linux

CWE-911 — Improper Update of Reference Count5 documents5 sources
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 93.75%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
LinuxLinux KernelDebian Linux
Timeline
PublishedMar 7

Description

In the Linux kernel, the following vulnerability has been resolved: cpufreq/amd-pstate: Fix cpufreq_policy ref counting amd_pstate_update_limits() takes a cpufreq_policy reference but doesn't decrement the refcount in one of the exit paths, fix that.

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

▶NVDlinux/linux_kernel6.12 — 6.12.16+2
▶Debianlinux/linux_kernel< 6.12.16-1+1
▶CVEListV5linux/linux45722e777fd99ea863fe653c1838d39f678506e2 — 56e6976793c0fcf1638aa534242408ab4e4ca705+3
▶debiandebian/linux< linux 6.12.16-1 (forky)

Patches

Patch: git.kernel.org ↗Patch: git.kernel.org ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

2
GHSA
GHSA-487h-mjh3-324w: In the Linux kernel, the following vulnerability has been resolved: cpufreq/amd-pstate: Fix cpufreq_policy ref counting amd_pstate_update_limits() t↗2025-03-07
▶
OSV
CVE-2025-21841: In the Linux kernel, the following vulnerability has been resolved: cpufreq/amd-pstate: Fix cpufreq_policy ref counting amd_pstate_update_limits() tak↗2025-03-07
▶

📋Vendor Advisories

2
Red Hat
kernel: cpufreq/amd-pstate: Fix cpufreq_policy ref counting↗2025-03-07
▶
Debian
CVE-2025-21841: linux - In the Linux kernel, the following vulnerability has been resolved: cpufreq/amd...↗2025
▶
CVE-2025-21841 — Improper Update of Reference Count | cvebase