CVE-2026-68352 wifi: ath6kl: fix OOB read from firmware IE lengths in connect event
An out-of-bounds read in the ath6kl Wi-Fi driver allows attackers to read memory or cause state corruption via crafted firmware events.
- 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-2026-68352?
CVE-2026-68352 is a high-severity memory corruption vulnerability in Linux, published on 10 Aug 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: ath6kl: fix OOB read from firmware IE lengths in connect event
The firmware-controlled beacon_ie_len, assoc_req_len, and assoc_resp_len fields in ath6kl_wmi_connect_event_rx() are not validated against the buffer length. Their sum (up to 765) can exceed the actual WMI event data, causing out-of-bounds reads during IE parsing and state corruption of wmi->is_wmm_enabled.
Add a check that the total IE length fits within the buffer.
Weakness: CWE-125
Which versions are affected by CVE-2026-68352?
How do I fix CVE-2026-68352?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-68352 being exploited?
There is no known exploitation of CVE-2026-68352 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2026-68352, DEBIAN-CVE-2026-68352, GHSA-3chg-p6wm-r59m, UBUNTU-CVE-2026-68352.