CVE-2025-22054: arcnet: Add NULL check in com20020pci_probe()

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-04-16 · updated 2026-06-17
Weakness: CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: arcnet: Add NULL check in com20020pci_probe() devm_kasprintf() returns NULL when memory allocation fails. Currently, com20020pci_probe() does not check for this case, which results in a NULL pointer dereference. Add NULL check after devm_kasprintf() to prevent this issue and ensure no resources are left allocated.

Affected products

Linux kernel: from 4.19.302 before 4.20; from 5.4.264 before 5.4.292; from 5.10.204 before 5.10.236; from 5.15.143 before 5.15.180; from 6.1.68 before 6.1.134; from 6.6.7 before 6.6.87 — fixed in 4.20, 5.10.236, 5.15.180, 5.4.292, 6.1.134, 6.12.23

How to fix

Upgrade to a fixed version: Linux kernel 4.20, 5.10.236, 5.15.180, 5.4.292. Check the vendor advisory for mitigations.

References

Get alerted when CVE-2025-22054 or the next vulnerability affects your stack