U.S. flag   An official website of the United States government
Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock (Dot gov) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2022-50494 Detail

Description

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 ]


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to [email protected].

URL Source(s) Tag(s)
https://git.kernel.org/stable/c/0f91f66c568b316b19cb042cf50584467b3bdff4 kernel.org
https://git.kernel.org/stable/c/3e799e815097febbcb81b472285be824f5d089f9 kernel.org
https://git.kernel.org/stable/c/418fae0700e85a498062424f8656435c32cdb200 kernel.org
https://git.kernel.org/stable/c/513943bf879d45005213e6f5cfb7d9e9943f589f kernel.org
https://git.kernel.org/stable/c/5614908434451aafbf9b24cb5247cf1d21269f76 kernel.org
https://git.kernel.org/stable/c/5a646c38f648185ee2c62f2a19da3c6f04e27612 kernel.org
https://git.kernel.org/stable/c/68b99e94a4a2db6ba9b31fe0485e057b9354a640 kernel.org
https://git.kernel.org/stable/c/6904727db0eb62fb0c2dce1cf331c341d97ee4b7 kernel.org
https://git.kernel.org/stable/c/6e2a347b304224b2aeb1c0ea000d1cf8a02cc592 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2022-50494
NVD Published Date:
10/04/2025
NVD Last Modified:
10/06/2025
Source:
kernel.org