The vulnerability of the functions get_perf_level_count() and cppc_get_cpu_power() in the driver/cpufreq/cppc_cpufreq.c module, a frequency scaling driver for Linux processors, allows a hacker to trigger a service failure.

The vulnerability of the getperflevelcount and cppcgetcpupower functions in the drivers/cpufreq/cppccpufreq.c driver for scaling kernel frequency in Linux operating systems is related to copying buffers without checking their size a classic buffer overflow attack. Exploiting this vulnerability...

CVE-2026-43122

A flaw was found in the Linux kernel's Advanced Configuration and Power Interface ACPI cpuidle driver. Due to an update in the acpiprocessorstart function, a NULL pointer dereference can occur if acpiprocessorpowerinit is called without a cpuidle driver. This vulnerability could allow a local...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ACPI: CPPC: Fixed NULL pointer dereferencing when nosmp is used When nosmp is used in the command line, other CPUs are not brought up, leaving their cpcdescptr NULL. CPU0’s iteration via foreachpossiblecpu dereferences these NULL...

AZL-67214 CVE-2025-39752 affecting package kernel for versions less than 6.6.104.2-1

In the Linux kernel, the following vulnerability has been resolved: ARM: rockchip: fix kernel hang during smp initialization In order to bring up secondary CPUs main CPU write trampoline code to SRAM. The trampoline code is written while secondary CPUs are powered on at least that true for RK3188...

CVE-2025-38610

In the Linux kernel, the following vulnerability has been resolved: powercap: dtpmcpu: Fix NULL pointer dereference in getpdpoweruw The getpdpoweruw function can crash with a NULL pointer dereference when emcpuget returns NULL. This occurs when a CPU becomes impossible during runtime, causing...

kernel: ACPI: processor_idle: Fix memory leak in acpi_processor_power_exit()

In the Linux kernel, the following vulnerability has been resolved: ACPI: processoridle: Fix memory leak in acpiprocessorpowerexit After unregistering the CPU idle device, the memory associated with it is not freed, leading to a memory leak: unreferenced object 0xffff896282f6c000 size 1024: comm...

cpufreq: amd-pstate: fix memory leak on CPU EPP exit

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CVE-2024-26894 ACPI: processor_idle: Fix memory leak in acpi_processor_power_exit()

In the Linux kernel, the following vulnerability has been resolved: ACPI: processoridle: Fix memory leak in acpiprocessorpowerexit After unregistering the CPU idle device, the memory associated with it is not freed, leading to a memory leak: unreferenced object 0xffff896282f6c000 size 1024: comm...

PT-2024-21565

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A memory leak has been identified in the Linux kernel, specifically in the ACPI processor idle functionality. After unregistering the CPU idle device, the associated memory is not freed,...