CVE-2023-53308: net: fec: Better handle pm_runtime_get() failing in .remove()

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: 2025-09-16 · updated 2026-06-17
Weakness: CWE-415

Description

In the Linux kernel, the following vulnerability has been resolved: net: fec: Better handle pm_runtime_get() failing in .remove() In the (unlikely) event that pm_runtime_get() (disguised as pm_runtime_resume_and_get()) fails, the remove callback returned an error early. The problem with this is that the driver core ignores the error value and continues removing the device. This results in a resource leak. Worse the devm allocated resources are freed and so if a callback of the driver is called later the register mapping is already gone which probably results in a crash.

Affected products

Linux kernel: from 4.9.206 before 4.10; from 4.14.158 before 4.14.316; from 4.19.88 before 4.19.284; from 5.3.15 before 5.4; from 5.4.1 before 5.4.244; from 5.5 before 5.10.181 — fixed in 4.10, 4.14.316, 4.19.284, 5.10.181, 5.15.113, 5.4

How to fix

Upgrade to a fixed version: Linux kernel 4.10, 4.14.316, 4.19.284, 5.10.181. Check the vendor advisory for mitigations.

References

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