Linux Kernel up to 6.0.2 thermal get_cpu injection

CVSS Meta Temp Score
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CTI Interest Score
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4.9$0-$5k0.00

Summaryinfo

A vulnerability has been found in Linux Kernel up to 6.0.2 and classified as critical. Affected by this issue is the function get_cpu of the component thermal. Performing a manipulation results in injection. This vulnerability is identified as CVE-2022-50494. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical has been found in Linux Kernel up to 6.0.2. This affects the function get_cpu of the component thermal. The manipulation with an unknown input leads to a injection vulnerability. CWE is classifying the issue as CWE-74. The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: thermal: intel_powerclamp: Use get_cpu() instead of smp_processor_id() to avoid crash When CPU 0 is offline and intel_powerclamp is used to inject idle, it generates kernel BUG: BUG: using smp_processor_id() in preemptible [00000000] code: bash/15687 caller is debug_smp_processor_id+0x17/0x20 CPU: 4 PID: 15687 Comm: bash Not tainted 5.19.0-rc7+ #57 Call Trace: <TASK> dump_stack_lvl+0x49/0x63 dump_stack+0x10/0x16 check_preemption_disabled+0xdd/0xe0 debug_smp_processor_id+0x17/0x20 powerclamp_set_cur_state+0x7f/0xf9 [intel_powerclamp] ... ... Here CPU 0 is the control CPU by default and changed to the current CPU, if CPU 0 offlined. This check has to be performed under cpus_read_lock(), hence the above warning. Use get_cpu() instead of smp_processor_id() to avoid this BUG. [ rjw: Subject edits ]

The advisory is shared at git.kernel.org. This vulnerability is uniquely identified as CVE-2022-50494 since 10/04/2025. The exploitability is told to be difficult. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 03/01/2026). MITRE ATT&CK project uses the attack technique T1055 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 279908 (SUSE SLES12 Security Update : kernel (SUSE-SU-2025:4515-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.9.331, 4.14.296, 4.19.262, 5.4.220, 5.10.150, 5.15.75, 5.19.17 or 6.0.3 eliminates this vulnerability. Applying the patch 3e799e815097febbcb81b472285be824f5d089f9/0f91f66c568b316b19cb042cf50584467b3bdff4/6904727db0eb62fb0c2dce1cf331c341d97ee4b7/5a646c38f648185ee2c62f2a19da3c6f04e27612/513943bf879d45005213e6f5cfb7d9e9943f589f/5614908434451aafbf9b24cb5247cf1d21269f76/6e2a347b304224b2aeb1c0ea000d1cf8a02cc592/418fae0700e85a498062424f8656435c32cdb200/68b99e94a4a2db6ba9b31fe0485e057b9354a640 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (279908) and CERT Bund (WID-SEC-2025-2194). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Google Container-Optimized OS
  • Debian Linux
  • Google Cloud Platform
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • Open Source Linux Kernel
  • RESF Rocky Linux
  • NetApp ActiveIQ Unified Manager
  • IBM QRadar SIEM
  • Dell NetWorker

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 4.9

VulDB Base Score: 4.6
VulDB Temp Score: 4.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Injection
CWE: CWE-74 / CWE-707 / CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 279908
Nessus Name: SUSE SLES12 Security Update : kernel (SUSE-SU-2025:4515-1)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 4.9.331/4.14.296/4.19.262/5.4.220/5.10.150/5.15.75/5.19.17/6.0.3
Patch: 3e799e815097febbcb81b472285be824f5d089f9/0f91f66c568b316b19cb042cf50584467b3bdff4/6904727db0eb62fb0c2dce1cf331c341d97ee4b7/5a646c38f648185ee2c62f2a19da3c6f04e27612/513943bf879d45005213e6f5cfb7d9e9943f589f/5614908434451aafbf9b24cb5247cf1d21269f76/6e2a347b304224b2aeb1c0ea000d1cf8a02cc592/418fae0700e85a498062424f8656435c32cdb200/68b99e94a4a2db6ba9b31fe0485e057b9354a640

Timelineinfo

10/04/2025 Advisory disclosed
10/04/2025 +0 days CVE reserved
10/04/2025 +0 days VulDB entry created
03/01/2026 +148 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2022-50494 (🔒)
GCVE (CVE): GCVE-0-2022-50494
GCVE (VulDB): GCVE-100-327141
CERT Bund: WID-SEC-2025-2194 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 10/04/2025 20:23
Updated: 03/01/2026 18:57
Changes: 10/04/2025 20:23 (59), 11/23/2025 08:28 (7), 12/26/2025 07:37 (1), 12/26/2025 14:29 (2), 01/24/2026 12:05 (12), 03/01/2026 18:57 (1)
Complete: 🔍
Cache ID: 216::103

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