CVE-2026-68310 wifi: mt76: mt7915: guard HE capability lookups
A null pointer dereference in the mt7915 Wi-Fi driver can cause a kernel crash when handling specific HE capability lookups.
- 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-2026-68310?
CVE-2026-68310 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: mt7915: guard HE capability lookups
mt7915_mcu_bss_he_tlv() and mt7915_mcu_sta_bfer_tlv() both run after checking HE support, then dereference the HE PHY capability returned by mt76_connac_get_he_phy_cap(). That helper can return NULL when no capability entry matches the vif type.
Fetch the capability before appending the TLV and skip the HE-specific setup when no matching capability is available.
Which versions are affected by CVE-2026-68310?
How do I fix CVE-2026-68310?
Apply the vendor's patch.
Is CVE-2026-68310 being exploited?
There is no known exploitation of CVE-2026-68310 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2026-68310, DEBIAN-CVE-2026-68310, GHSA-wpgr-w4wr-692g, UBUNTU-CVE-2026-68310.