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CVE-2022-48854

kernel: net: arc_emac: Fix use after free in arc_mdio_probe()

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Severity

Moderate

Red Hat Product Security

5.1

CVSS 3.1

Review impact separately from score.

Published · July 16, 2024

Updated · February 2, 2026

Description

A vulnerability was found in the Linux kernel's ARC EMAC driver, where a use-after-free occurs in the arc_mdio_probe() function, when the bus state is MDIOBUS_ALLOCATED, calling mdiobus_free(bus) deallocates the bus while its name is still accessed, leading to potential memory corruption.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 5.1
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H

CWE-416 · Use After Free