CVE-2026-98425 wifi: mac80211: don't warn when an IBSS has no channel to scan
A kernel warning triggered by IBSS scanning without allowed channels could lead to system instability or denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-98425?
CVE-2026-98425 is a denial of service vulnerability in Linux, published on 14 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
wifi: mac80211: don't warn when an IBSS has no channel to scan
ieee80211_request_ibss_scan() warns when regulatory leaves no allowed channel, but that can happen as the regdomain can change while IBSS is operating, and it can continue to operate briefly during the 60s grace period until it's shut down.
Just remove the warning in this case.
Which versions are affected by CVE-2026-98425?
How do I fix CVE-2026-98425?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-98425 being exploited?
There is no known exploitation of CVE-2026-98425 in the wild and no public exploit code.
Sources
Also known as AZL-108096, BELL-CVE-2026-98425, DEBIAN-CVE-2026-98425, GHSA-x62r-88r2-8qcr, UBUNTU-CVE-2026-98425.