CVE-2023-33203

kernel: net: qcom/emac: race condition leading to use-after-free in emac_remove()

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Severity

Moderate

Red Hat Product Security

6.4

CVSS 3.1

Review impact separately from score.

Published · March 20, 2023

Updated · June 28, 2026

Description

A race condition vulnerability was found in the Linux kernel's Qualcomm EMAC Gigabit Ethernet Controller when the user physically removes the device before cleanup in the emac_remove function. This flaw can eventually result in a use-after-free issue, possibly leading to a system crash or other undefined behaviors.

Statement

Red Hat Enterprise Linux 6 and 7 are not affected by this flaw as they did not include support for the EMAC Gigabit Ethernet Controller.

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 · 6.4
CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE-459 · Incomplete Cleanup