vulnerability
Red Hat: CVE-2025-21828: kernel: wifi: mac80211: don't flush non-uploaded STAs (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:L/Au:S/C:N/I:N/A:C) | Mar 6, 2025 | Jul 9, 2025 | Jun 17, 2026 |
Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:C)
Published
Mar 6, 2025
Added
Jul 9, 2025
Modified
Jun 17, 2026
Description
In the Linux kernel, the following vulnerability has been resolved:
wifi: mac80211: don't flush non-uploaded STAs
If STA state is pre-moved to AUTHORIZED (such as in IBSS
scenarios) and insertion fails, the station is freed.
In this case, the driver never knew about the station,
so trying to flush it is unexpected and may crash.
Check if the sta was uploaded to the driver before and
fix this.
Solutions
redhat-upgrade-kernelredhat-upgrade-kernel-rt
Rapid7 Labs
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