CVE-2024-50009

System crash via unchecked CPUFreq policy lookup

Published Oct 21, 2024 · Updated May 11, 2026

A NULL-pointer dereference in affected Linux kernel releases starting at 5.17 allows local users to crash the system via amd-pstate. The amd_pstate_adjust_perf function dereferences policy data after cpufreq_cpu_get returns NULL instead of stopping on the failed lookup. The path requires a supported AMD processor with amd-pstate active, and the reported consequence is limited to loss of availability.

CVSS severity5.5
Medium
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A NULL-pointer dereference in affected Linux kernel releases starting at 5.17 allows local users to crash the system via amd-pstate. The amd_pstate_adjust_perf function dereferences policy data after cpufreq_cpu_get returns NULL instead of stopping on the failed lookup. The path requires a supported AMD processor with amd-pstate active, and the reported consequence is limited to loss of availability.

The record

CVE
CVE-2024-50009
Published
Oct 21, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 21, 2024CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.17
  2. Affected versionversion=ec437d71db77a181227bf6d0ac9d4a80e58ecf0f <5493f9714e4cdaf0ee7cec15899a231400cb1a9f
  3. Affected versionversion=ec437d71db77a181227bf6d0ac9d4a80e58ecf0f <5f250d44b8191d612355dd97b89b37bbc1b5d2cb
  4. Affected versionversion=ec437d71db77a181227bf6d0ac9d4a80e58ecf0f <cd9f7bf6cad8b2d3876105ce3c9fc63460a046f6

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.17; version=ec437d71db77a181227bf6d0ac9d4a80e58ecf0f <5493f9714e4cdaf0ee7cec15899a231400cb1a9f; version=ec437d71db77a181227bf6d0ac9d4a80e58ecf0f <5f250d44b8191d612355dd97b89b37bbc1b5d2cb; version=ec437d71db77a181227bf6d0ac9d4a80e58ecf0f <cd9f7bf6cad8b2d3876105ce3c9fc63460a046f6

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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