CVE-2025-71222 wifi: wlcore: ensure skb headroom before skb_push
A missing headroom check in the wlcore Wi-Fi driver causes a kernel panic, leading to a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-71222?
CVE-2025-71222 is a medium-severity vulnerability in Linux kernel, published on 14 Feb 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: wlcore: ensure skb headroom before skb_push
This avoids occasional skb_under_panic Oops from wl1271_tx_work. In this case, headroom is less than needed (typically 110 - 94 = 16 bytes).
Which versions are affected by CVE-2025-71222?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2025-71222?
Apply the vendor's patch.
Is CVE-2025-71222 being exploited?
There is no known exploitation of CVE-2025-71222 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-77766, BELL-CVE-2025-71222, DEBIAN-CVE-2025-71222, GHSA-9j4j-wgpf-5mxc, ROOT-OS-DEBIAN-11-CVE-2025-71222, ROOT-OS-DEBIAN-12-CVE-2025-71222 and 4 more.