CVE-2021-47051

MEDIUM

Linux Kernel 5.2-5.4.118 - PM Reference Leak in FSL LPSPI Transfer Preparation

Title source: llm
STIX 2.1

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.

References (5)

Core 5

Scores

CVSS v3 5.5
EPSS 0.0022
EPSS Percentile 13.2%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

Status published
Products (13)
Linux/Linux < 5.2
Linux/Linux 5.10.37 - 5.10.*
Linux/Linux 5.11.21 - 5.11.*
Linux/Linux 5.12.4 - 5.12.*
Linux/Linux 5.13
Linux/Linux 5.2
Linux/Linux 5.4.119 - 5.4.*
Linux/Linux 944c01a889d97dc08e1b71f4ed868f4023fd6034 - 4a01ad002d2e03c399af536562693752af7c81b1
Linux/Linux 944c01a889d97dc08e1b71f4ed868f4023fd6034 - 6a2b5cee0d31ab6cc51030c441135b0e31217282
Linux/Linux 944c01a889d97dc08e1b71f4ed868f4023fd6034 - a03675497970a93fcf25d81d9d92a59c2d7377a7
... and 3 more
Published Feb 28, 2024
Tracked Since Feb 18, 2026