CVE-2021-47513: net: dsa: felix: Fix memory leak in felix_setup_mmio_filtering

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: 2024-05-24 · updated 2026-06-17
Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: net: dsa: felix: Fix memory leak in felix_setup_mmio_filtering Avoid a memory leak if there is not a CPU port defined. Addresses-Coverity-ID: 1492897 ("Resource leak") Addresses-Coverity-ID: 1492899 ("Resource leak")

Affected products

Linux kernel: from 5.15 before 5.15.8 — fixed in 5.15.8

How to fix

Upgrade to a fixed version: Linux kernel 5.15.8. Check the vendor advisory for mitigations.

References

https://git.kernel.org/stable/c/973a0373e88cc19129bd6ef0ec193040535397d9
https://git.kernel.org/stable/c/e8b1d7698038e76363859fb47ae0a262080646f5
https://git.kernel.org/stable/c/973a0373e88cc19129bd6ef0ec193040535397d9
https://git.kernel.org/stable/c/e8b1d7698038e76363859fb47ae0a262080646f5

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