CVE-2024-42142
kernel: net/mlx5: E-switch, Create ingress ACL when needed
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · July 30, 2024
Updated · February 2, 2026
Description
A vulnerability was found in the Linux kernel's ethernet mlx5 driver where improper ingress ACL creation means that when the vport metadata match or prio tag are disabled the ingress ACL is not created. Since the active-backup LAG mode also relies on the ingress ACL but is not tied to the vport metadata match or prio tag, attempting to add a drop rule could result in a kernel panic and lead to system instability or crashes.
Statement
Red Hat Enterprise Linux is not impacted by this CVE, as the vulnerability in question does not affect the specific versions or configurations of the Linux kernel used in its distributions. This ensures that users of Red Hat Enterprise Linux are not exposed to the potential risks associated with this issue, and no further action or mitigation is necessary for systems running this operating system.
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 · 4.4CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CWE-456 · Missing Initialization of a Variable