CVE-2021-47161: spi: spi-fsl-dspi: Fix a resource leak in an error handling path

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-03-25 · updated 2026-06-17
Weakness: CWE-209

Description

In the Linux kernel, the following vulnerability has been resolved: spi: spi-fsl-dspi: Fix a resource leak in an error handling path 'dspi_request_dma()' should be undone by a 'dspi_release_dma()' call in the error handling path of the probe function, as already done in the remove function

Affected products

Linux kernel: from 4.10 before 4.14.241; from 4.15 before 4.19.199; from 4.20 before 5.4.124; from 5.5 before 5.10.42; from 5.11 before 5.12.9; 5.13-rc1, 5.13-rc2, 5.13-rc3 — fixed in 4.14.241, 4.19.199, 5.10.42, 5.12.9, 5.4.124

How to fix

Upgrade to a fixed version: Linux kernel 4.14.241, 4.19.199, 5.10.42, 5.12.9. Check the vendor advisory for mitigations.

References

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