CVE-2023-53442

ice: Block switchdev mode when ADQ is active and vice versa

State: Published
Severity: 5.5 Medium
Published: Sep 18, 2025
Updated: May 11, 2026
Reserved: Sep 17, 2025

Description

In the Linux kernel, the following vulnerability has been resolved:

ice: Block switchdev mode when ADQ is active and vice versa

ADQ and switchdev are not supported simultaneously. Enabling both at the same time can result in nullptr dereference.

To prevent this, check if ADQ is active when changing devlink mode to switchdev mode, and check if switchdev is active when enabling ADQ.

Scores

CVSS	Score	Vector	Source
3.1	5.5 Medium	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

CWE-476 NULL Pointer Dereference

Affected Products

Product	Versions
LinuxLinux	fbc7b27af0f9fb181811424e29caf6825594a841 to before 1c82d1b736ce85e77fd4da05eca6f1f4a52a2bc3Affected fbc7b27af0f9fb181811424e29caf6825594a841 to before 24f0d69da35d812b3a1104918014a29627140cb1Affected fbc7b27af0f9fb181811424e29caf6825594a841 to before 43d00e102d9ecbe2635d7e3f2e14d2e90183d6afAffected
LinuxLinux	5.16Affected before 5.16Not affected 6.1.47 through 6.1.Not affected 6.4.12 through 6.4.Not affected 6.5 and laterNot affected

References

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