CVE-2021-47051

low-risk
Published 2024-02-28

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.

Do I need to act?

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0.02% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Linux

References (10)

Patch https://git.kernel.org/stable/c/4a01ad002d2e03c399af536562693752af7c81b1
Patch https://git.kernel.org/stable/c/6a2b5cee0d31ab6cc51030c441135b0e31217282
Patch https://git.kernel.org/stable/c/a03675497970a93fcf25d81d9d92a59c2d7377a7
Patch https://git.kernel.org/stable/c/b8207bfc539cd07d15e753ff2d179c5b61c673b1
Patch https://git.kernel.org/stable/c/ce02e58ddf8658a4c3bed2296f32a5873b3f7cce
Patch https://git.kernel.org/stable/c/4a01ad002d2e03c399af536562693752af7c81b1
Patch https://git.kernel.org/stable/c/6a2b5cee0d31ab6cc51030c441135b0e31217282
Patch https://git.kernel.org/stable/c/a03675497970a93fcf25d81d9d92a59c2d7377a7
Patch https://git.kernel.org/stable/c/b8207bfc539cd07d15e753ff2d179c5b61c673b1
Patch https://git.kernel.org/stable/c/ce02e58ddf8658a4c3bed2296f32a5873b3f7cce
23
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal