CVE-2025-38642

wifi: mac80211: fix WARN_ON for monitor mode on some devices

published August 22, 2025

CVSS
—
EPSS
0%
Percentile
5.4
In the wild
Unconfirmed
What it is

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

wifi: mac80211: fix WARN_ON for monitor mode on some devices

On devices without WANT_MONITOR_VIF (and probably without

channel context support) we get a WARN_ON for changing the

per-link setting of a monitor interface.

Since we already skip AP_VLAN interfaces and MONITOR with

WANT_MONITOR_VIF and/or NO_VIRTUAL_MONITOR should update

the settings, catch this in the link change code instead

of the warning.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.00165 · 5.4th percentile
Published
2025-08-22T16:00Z
EPSS history
Timeline
  • 22 AUG 16:00Z
    wifi: mac80211: fix WARN_ON for monitor mode on some devices
    cvelistv5