NULL pointer dereference in Linux
CVE-2023-53442
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.
EPSS: 0.001 (3.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Linux — versions fbc7b27af0f9fb181811424e29caf6825594a841, 5.16, 0
- Linux Linux_kernel — versions 6.5
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2023-53442?
- CVE-2023-53442 is a medium-severity vulnerability in Linux, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2025-09-18.
- How severe is CVE-2023-53442?
- Medium severity. CVSS v3 base score is 5.5 out of 10.