CVE-2023-53113: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: wifi: nl80211: fix NULL-ptr deref in offchan check If, e.g. in AP mode, the link was already created by userspace but not activated yet, it has a chandef but the chandef isn't valid and has no channel. Check for this and ignore this link.

Affected products

• Linux Linux Kernel: from 5.19.2, before 6.1.21 (fixed in 6.1.21); from 6.2, before 6.2.8 (fixed in 6.2.8); version 6.3 only

Published 2025-05-02. Last modified 2026-06-17.