CVE-2022-49391: remoteproc: mtk_scp: Fix a potential double free

Severity: high (CVSS 7.8 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: 2025-02-26 · updated 2026-06-17
Weakness: CWE-415

Description

In the Linux kernel, the following vulnerability has been resolved: remoteproc: mtk_scp: Fix a potential double free 'scp->rproc' is allocated using devm_rproc_alloc(), so there is no need to free it explicitly in the remove function.

Affected products

Linux kernel: from 5.18 before 5.18.4 — fixed in 5.18.4

How to fix

Upgrade to a fixed version: Linux kernel 5.18.4. Check the vendor advisory for mitigations.

References

https://git.kernel.org/stable/c/adc02700236613b344a947a897fc2741d52a43b9
https://git.kernel.org/stable/c/eac3e5b1c12f85732e60f5f8b985444d273866bb

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