// For flags

CVE-2021-47051

spi: fsl-lpspi: Fix PM reference leak in lpspi_prepare_xfer_hardware()

Severity Score

5.5
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

In the Linux kernel, the following vulnerability has been resolved: spi: fsl-lpspi: Fix PM reference leak in lpspi_prepare_xfer_hardware() pm_runtime_get_sync will increment pm usage counter even it failed.
Forgetting to putting operation will result in reference leak here.
Fix it by replacing it with pm_runtime_resume_and_get to keep usage
counter balanced.

En el kernel de Linux, se resolvió la siguiente vulnerabilidad: spi: fsl-lpspi: corrige la fuga de referencia de PM en lpspi_prepare_xfer_hardware() pm_runtime_get_sync incrementará el contador de uso de PM incluso si falla. Olvidarse de poner en funcionamiento resultará en una fuga de referencia aquí. Solucionelo reemplazándolo con pm_runtime_resume_and_get para mantener el contador de uso equilibrado.

In the Linux kernel, the following vulnerability has been resolved: spi: fsl-lpspi: Fix PM reference leak in lpspi_prepare_xfer_hardware() pm_runtime_get_sync will increment pm usage counter even it failed. Forgetting to putting operation will result in reference leak here. Fix it by replacing it with pm_runtime_resume_and_get to keep usage counter balanced.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
Single
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-02-27 CVE Reserved
  • 2024-02-28 CVE Published
  • 2024-12-17 EPSS Updated
  • 2024-12-19 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 5.2 < 5.4.119
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.2 < 5.4.119"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 5.2 < 5.10.37
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.2 < 5.10.37"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 5.2 < 5.11.21
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.2 < 5.11.21"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 5.2 < 5.12.4
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.2 < 5.12.4"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 5.2 < 5.13
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.2 < 5.13"
en
Affected