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LIN1021-7537 : Security Advisory - linux - CVE-2021-47051

Created: Feb 28, 2024    Updated: Apr 2, 2024
Resolved Date: Apr 2, 2024
Found In Version: 10.21.20.1
Severity: Standard
Applicable for: Wind River Linux LTS 21
Component/s: Kernel

Description

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.

CREATE(Triage):(User=admin) CVE-2021-47051 (https://nvd.nist.gov/vuln/detail/CVE-2021-47051)
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