// For flags

CVE-2024-38573

cppc_cpufreq: Fix possible null pointer dereference

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

In the Linux kernel, the following vulnerability has been resolved:

cppc_cpufreq: Fix possible null pointer dereference

cppc_cpufreq_get_rate() and hisi_cppc_cpufreq_get_rate() can be called from
different places with various parameters. So cpufreq_cpu_get() can return
null as 'policy' in some circumstances.
Fix this bug by adding null return check.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: cppc_cpufreq: se corrige la posible desreferencia del puntero nulo. cppc_cpufreq_get_rate() y hisi_cppc_cpufreq_get_rate() se pueden llamar desde diferentes lugares con varios parámetros. Entonces cpufreq_cpu_get() puede devolver nulo como 'política' en algunas circunstancias. Corrija este error agregando una verificación de devolución nula. Encontrado por el Centro de verificación de Linux (linuxtesting.org) con SVACE.

A NULL pointer dereference flaw was found in cppc_cpufreq_get_rate() in the Linux kernel. This issue may result in a crash.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-06-18 CVE Reserved
  • 2024-06-19 CVE Published
  • 2024-06-20 EPSS Updated
  • 2024-08-02 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-476: NULL Pointer Dereference
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.11 < 5.15.161
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.11 < 5.15.161"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.11 < 6.1.93
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.11 < 6.1.93"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.11 < 6.6.33
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.11 < 6.6.33"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.11 < 6.8.12
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.11 < 6.8.12"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.11 < 6.9.3
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.11 < 6.9.3"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.11 < 6.10
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.11 < 6.10"
en
Affected