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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2022-50250 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: regulator: core: fix use_count leakage when handling boot-on I found a use_count leakage towards supply regulator of rdev with boot-on option. ┌───────────────────┐ ┌───────────────────┐ │ regulator_dev A │ │ regulator_dev B │ │ (boot-on) │ │ (boot-on) │ │ use_count=0 │◀──supply──│ use_count=1 │ │ │ │ │ └───────────────────┘ └───────────────────┘ In case of rdev(A) configured with `regulator-boot-on', the use_count of supplying regulator(B) will increment inside regulator_enable(rdev->supply). Thus, B will acts like always-on, and further balanced regulator_enable/disable cannot actually disable it anymore. However, B was also configured with `regulator-boot-on', we wish it could be disabled afterwards.


Metrics

 
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CVSS 4.0 Severity and Vector Strings:

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

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/0591b14ce0398125439c759f889647369aa616a0 kernel.org
https://git.kernel.org/stable/c/4b737246ff50f810d6ab4be13c1388a07f0c14b1 kernel.org
https://git.kernel.org/stable/c/4dd6e1cc9c7403f1ee1b7eee85bc31b797ae8347 kernel.org
https://git.kernel.org/stable/c/5bfc53df288e8ea54ca6866fb92034214940183f kernel.org
https://git.kernel.org/stable/c/bc6c381df5793ebcf32db88a3e65acf7870379fc kernel.org
https://git.kernel.org/stable/c/dc3391d49479bc2bf8a2b88dbf86fdd800882fee kernel.org
https://git.kernel.org/stable/c/feb847e6591e8c7a09cc39721cc9ca74fd9a5d80 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2022-50250
NVD Published Date:
09/15/2025
NVD Last Modified:
09/15/2025
Source:
kernel.org