CVE-2026-80941 wifi: rtw88: Fix potential memory leak in rtw_txq_push_skb()
A memory leak in the rtw88 Wi-Fi driver allows attackers to cause denial of service by exhausting kernel memory.
- 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-2026-80941?
CVE-2026-80941 is a memory corruption vulnerability in Linux, published on 11 Sep 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: rtw88: Fix potential memory leak in rtw_txq_push_skb()
The skb passed to the rtw_hci_tx_write() is expected to be freed when the function fails, but the error path in rtw_txq_push_skb() does not free the skb before returning. This can lead to a memory leak in rtw_txq_push() where a dequeued skb is passed to rtw_txq_push_skb().
Which versions are affected by CVE-2026-80941?
How do I fix CVE-2026-80941?
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-2026-80941 being exploited?
There is no known exploitation of CVE-2026-80941 in the wild and no public exploit code.
Sources
Also known as AZL-100709, BELL-CVE-2026-80941, DEBIAN-CVE-2026-80941, GHSA-9h94-gfx3-cm5q, UBUNTU-CVE-2026-80941.