CVE-2026-68308 wifi: mt76: mt7996: check pointer returned by mt76_connac_get_he_phy_cap()
A missing null check in the mt7996 WiFi driver can cause a kernel crash, leading to denial of service for local or adjacent attackers.
- 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-2026-68308?
CVE-2026-68308 is a 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: mt76: mt7996: check pointer returned by mt76_connac_get_he_phy_cap()
mt76_connac_get_he_phy_cap routine can theoretically return NULL so check cap pointer before dereferencing it.
Which versions are affected by CVE-2026-68308?
How do I fix CVE-2026-68308?
Apply the vendor's patch.
Is CVE-2026-68308 being exploited?
There is no known exploitation of CVE-2026-68308 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2026-68308, DEBIAN-CVE-2026-68308, GHSA-cfcv-hx89-922w, UBUNTU-CVE-2026-68308.